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https://api.github.com/repos/pandas-dev/pandas/issues/33217
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592,142,053
MDExOlB1bGxSZXF1ZXN0Mzk3MTgwOTYx
33,217
BUG: Block.setitem GH#32395
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2020-04-01T19:12:18Z
2020-04-23T22:38:33Z
2020-04-03T16:53:41Z
MEMBER
null
@h-vishal this is based on what you have in #32479. Can you adapt parts of this to address comments over there? (that should be merged, not this, as you did the real work)
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33,218
32380 deprecate squeeze in groupby
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2020-04-01T20:02:44Z
2020-05-23T19:59:10Z
2020-05-22T23:49:12Z
MEMBER
null
- [x] closes #32380 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry I deprecated the squeeze keyword. I think I got every points this keyword was used. I hope that I considered every point necessary to deprecate a keyword. I tried to use other points were a keyword was deprecated as example.
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592,183,672
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33,219
REF: DataFrame.mask tests
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0
2020-04-01T20:27:39Z
2020-04-02T15:25:48Z
2020-04-02T14:18:32Z
MEMBER
null
we already did this for Series.mask
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33,220
ENH: Add isocalendar accessor to DatetimeIndex and Series.dt
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22
2020-04-01T20:35:15Z
2020-04-13T20:01:43Z
2020-04-12T21:34:32Z
CONTRIBUTOR
null
This PR adds the the isocalendar property to `DatetimeIndex` and the corresponding `Series.dt` accessor. The property returns a DataFrame, e.g.: ```python >>> idx = pd.date_range(start='2019-12-29', freq='D', periods=4) >>> idx.isocalendar year week day 0 2019 52 7 1 2020 1 1 2 2020 1 2 3 2020 1 3 ``` and ```python >>> pandas.to_datetime(pandas.Series(["2020-01-01"])).dt.isocalendar year week day 0 2020 1 >>> pandas.to_datetime(pandas.Series(["2019-12-31"])).dt.isocalendar.week 0 1 Name: week, dtype: int32 ``` The behavior is consistent with `Timestamp.isocalendar` and `datetime.date.isocalendar`. For more information about ISO 8601 calendar, see e.g. https://en.wikipedia.org/wiki/ISO_week_date. Address GH33206 - [x] closes #33206 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry Note that I am very happy to rename the field, but I wanted to go ahead and open up the PR.
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TST: misplaced validate_indices tests
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2020-04-02T15:22:43Z
2020-04-02T14:23:10Z
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CLN: Use C-API for datetime.date
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2020-04-01T21:00:37Z
2020-04-03T11:38:33Z
2020-04-02T01:38:15Z
MEMBER
null
- [ ] closes #xxxx - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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33,223
REF: misplaced Index.__contains__ tests
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2020-04-02T15:32:22Z
2020-04-02T14:19:51Z
MEMBER
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33,224
compatibility issues with master branch cython
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13
2020-04-01T21:25:59Z
2020-04-08T13:23:00Z
2020-04-07T14:31:01Z
CONTRIBUTOR
null
On the cython master branch the generated c code has unused functions which fails the build with: ``` gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fno-semantic-interposition -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -march=x86-64 -mtune=generic -O3 -pipe -fno-plt -fPIC -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/home/tcaswell/.virtualenvs/sys38/lib/python3.8/site-packages/numpy/core/include -I/home/tcaswell/.virtualenvs/sys38/include -I/usr/include/python3.8 -c pandas/_libs/algos.c -o build/temp.linux-x86_64-3.8/pandas/_libs/algos.o -Werror pandas/_libs/algos.c:87270:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_762__defaults__’ defined but not used [-Werror=unused-function] 87270 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_762__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:78766:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_744__defaults__’ defined but not used [-Werror=unused-function] 78766 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_744__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:71391:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_726__defaults__’ defined but not used [-Werror=unused-function] 71391 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_726__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:62479:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_724__defaults__’ defined but not used [-Werror=unused-function] 62479 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_724__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:56193:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_678__defaults__’ defined but not used [-Werror=unused-function] 56193 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_678__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:50908:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_632__defaults__’ defined but not used [-Werror=unused-function] 50908 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_632__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:40806:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_586__defaults__’ defined but not used [-Werror=unused-function] 40806 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_586__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:34476:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_540__defaults__’ defined but not used [-Werror=unused-function] 34476 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_540__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:29147:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_494__defaults__’ defined but not used [-Werror=unused-function] 29147 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_494__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:19248:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_448__defaults__’ defined but not used [-Werror=unused-function] 19248 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_448__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:12162:18: error: ‘__pyx_pf_6pandas_5_libs_5algos_446__defaults__’ defined but not used [-Werror=unused-function] 12162 | static PyObject *__pyx_pf_6pandas_5_libs_5algos_446__defaults__(CYTHON_UNUSED PyObject *__pyx_self) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors error: command 'gcc' failed with exit status 1 ``` and similar warnings from other modules (this just happens to be the first one). If I remove the `"-Werror"` it seems to build ok. Not sure if this should be reported here at cython. I will likely try to bisect this to the cython change later today.
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MDExOlB1bGxSZXF1ZXN0Mzk3MjQ1Mzc2
33,225
CI: Checking all the examples in `pandas/core/series.py`
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1
2020-04-01T21:38:23Z
2020-04-06T08:43:47Z
2020-04-01T22:09:50Z
MEMBER
null
Since all the examples are passing, there is no reason not to check for all the examples (IMO).
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592,248,958
MDExOlB1bGxSZXF1ZXN0Mzk3MjY5NjQ0
33,226
Fix typos in 09_timeseries.rst
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2
2020-04-01T22:48:58Z
2020-04-02T16:18:08Z
2020-04-02T16:18:02Z
CONTRIBUTOR
null
- [ ] closes #xxxx - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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592,252,283
MDExOlB1bGxSZXF1ZXN0Mzk3MjcyMzg3
33,227
CLN: De-privatize names
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0
2020-04-01T22:58:54Z
2020-04-02T15:23:16Z
2020-04-02T14:20:30Z
MEMBER
null
xref #32942, these are some of the more common offenders. I'd actually prefer to not have the _NS_DTYPE and _TD_DTYPE objects and just use the pertinent strings, but if we are going to use the objects, might as well de-code-smell them.
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592,287,929
MDExOlB1bGxSZXF1ZXN0Mzk3MzAxNDMw
33,228
Clean Up Categorical Test for JSON
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3
2020-04-02T00:55:27Z
2020-04-04T15:25:12Z
2020-04-03T03:20:19Z
MEMBER
null
This is a little wonky in its current state, bolting categoricals onto an existing object / fixture Instead just localized this to the one test that covers it for now
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592,292,517
MDExOlB1bGxSZXF1ZXN0Mzk3MzA0OTM4
33,229
REF: sql insert_data operate column-wise to avoid internals
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2020-04-02T01:11:32Z
2020-04-07T18:26:37Z
2020-04-07T18:19:41Z
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592,308,078
MDExOlB1bGxSZXF1ZXN0Mzk3MzE3MDc0
33,230
DOC: Fixed examples in `pandas/core/groupby/`
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1
2020-04-02T02:08:28Z
2020-04-10T19:22:18Z
2020-04-10T19:20:22Z
MEMBER
null
- [ ] closes #xxxx - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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592,330,703
MDExOlB1bGxSZXF1ZXN0Mzk3MzM1MDE1
33,231
REF: put concatenate_block_managers in internals.concat
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2020-04-02T03:23:23Z
2020-04-06T23:28:14Z
2020-04-06T23:20:24Z
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592,339,763
MDU6SXNzdWU1OTIzMzk3NjM=
33,232
merge() outer with left_on column and right_index=True produces unexpected results
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3
2020-04-02T03:54:22Z
2020-05-28T20:36:30Z
null
CONTRIBUTOR
null
Apologies if this has been reported before, I searched through the issues but couldn't find a duplicate, IMHO. #### Code Sample: ```python import pandas as pd import numpy as np df1 = pd.DataFrame({'lkey': [0, np.nan, np.nan, 3], 'value': [1, 2, 3, 5]}) >>> df1 lkey value 0 0.0 1 1 NaN 2 2 NaN 3 3 3.0 5 df2 = pd.DataFrame({'rkey': ['foo', 'bar', 'rock', 'baz'], 'value': [0, 1, 2, 3]}) >>> df2 rkey value 0 foo 0 1 bar 1 2 rock 2 3 baz 3 res_1 = pd.merge(df1, df2, how='outer', suffixes=('_left', '_right'), left_on='lkey', right_index=True) >>> res_1 lkey value_left rkey value_right 0.0 0.0 1.0 foo 0.0 1.0 NaN 2.0 NaN NaN 2.0 NaN 3.0 NaN NaN 3.0 3.0 5.0 baz 3.0 NaN 1.0 NaN bar 1.0 NaN 2.0 NaN rock 2.0 res_2 = pd.merge(df1, df2, how='outer', suffixes=('_left', '_right'), left_on='lkey', right_on='value') >>> res_2 lkey value_left rkey value_right 0 0.0 1.0 foo 0.0 1 NaN 2.0 NaN NaN 2 NaN 3.0 NaN NaN 3 3.0 5.0 baz 3.0 4 NaN NaN bar 1.0 5 NaN NaN rock 2.0 ``` #### Problem description - When merging with `how=outer` and `right_index=True`, result `res_1` produces the last 2 rows with some unexpected values for the `index` and especially the `lkey`. - Last 2 rows have `lkey` values that don't seem to exist in the original left side `df1`. - Last 2 rows have `np.nan` for `index`. Was expecting perhaps `[4.0, 5.0]` - Compare this to `res_2`. Which is almost identical `merge` except now instead of `right_index=True` we use a column `right_on='value'` - the `df2` `index` and `value` column have the same type and values. - I would expect seeing `res_2` instead of `res_1` when merging with `right_index=True` above. #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.7.6.final.0 python-bits : 64 OS : Darwin OS-release : 18.7.0 machine : x86_64 processor : i386 byteorder : little LC_ALL : None LANG : en_AU.UTF-8 LOCALE : en_AU.UTF-8 pandas : 0.25.3 numpy : 1.18.1 pytz : 2019.3 dateutil : 2.8.1 pip : 20.0.2 setuptools : 45.1.0 Cython : 0.29.11 pytest : 5.1.1 hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : 0.9.6 lxml.etree : None html5lib : None pymysql : None psycopg2 : 2.8.3 (dt dec pq3 ext lo64) jinja2 : 2.9.6 IPython : None pandas_datareader: None bs4 : None bottleneck : 1.3.1 fastparquet : None gcsfs : None lxml.etree : None matplotlib : None numexpr : 2.6.9 odfpy : None openpyxl : 1.8.6 pandas_gbq : None pyarrow : None pytables : None s3fs : None scipy : 1.1.0 sqlalchemy : 1.3.12 tables : 3.5.1 xarray : None xlrd : 1.2.0 xlwt : None xlsxwriter : 0.9.6 </details>
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592,382,734
MDExOlB1bGxSZXF1ZXN0Mzk3Mzc2MjA2
33,233
Ods loses spaces 32207
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10
2020-04-02T06:10:54Z
2020-04-06T23:26:52Z
2020-04-06T23:26:49Z
CONTRIBUTOR
null
- [X] closes #32207 - [X] tests added / passed tests.io.excel.test_reader_spaces - [X] passes `black pandas` - [X] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` (I had to use git diff master though) - [ ] whatsnew entry. It's only a bug fix does it need a whatsnew? I'm not sure how you make xlsxb files so that test wasn't implement when checking for the different types of space. There's quite possibly many other ways this parser doesn't handle the odf specification.
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Groupby multiple columns causes agg to have precision loss on int64
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2020-04-02T06:31:38Z
2021-09-11T00:19:07Z
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#### Code Sample, a copy-pastable example if possible ```python import pandas as pd df=pd.DataFrame({ "KEY1": ["KEY1"], "KEY2": ["KEY2"], "INT64": [1583715738627261039] }) # Grouping by one column produces correct output print(df.groupby(["KEY1"]).agg(lambda x: x)) # Grouping by more than one column produces incorrect output print(df.groupby(["KEY1", "KEY2"]).agg(lambda x: x)) ``` #### Problem description Precision loss on the int64 column when grouping by multiple columns. Similar behaviour can be seen when doing ``` >>> df.groupby(["KEY1"]).sum() INT64 KEY1 KEY1 1583715738627260928 ``` but that seems like a different issue with cythonized group sum not supporting int64? According to: https://github.com/pandas-dev/pandas/issues/15027#issuecomment-269902341 #### Expected Output ``` KEY2 INT64 KEY1 KEY1 KEY2 1583715738627261039 INT64 KEY1 KEY2 KEY1 KEY2 1583715738627261039 ``` #### Actual Output ``` KEY2 INT64 KEY1 KEY1 KEY2 1583715738627261039 INT64 KEY1 KEY2 KEY1 KEY2 1583715738627260928 ``` #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.6.5.final.0 python-bits : 64 OS : Linux OS-release : 3.16.0-77-generic machine : x86_64 processor : x86_64 byteorder : little LC_ALL : None LANG : en_AU.UTF-8 LOCALE : en_AU.UTF-8 pandas : 1.0.3 numpy : 1.18.2 pytz : 2019.3 dateutil : 2.8.1 pip : 20.0.2 setuptools : 46.1.3 Cython : None pytest : None hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : None IPython : None pandas_datareader: None bs4 : None bottleneck : None fastparquet : None gcsfs : None lxml.etree : None matplotlib : None numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pytables : None pytest : None pyxlsb : None s3fs : None scipy : None sqlalchemy : None tables : None tabulate : None xarray : None xlrd : None xlwt : None xlsxwriter : None numba : None </details>
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33,235
TST: Use try/except block to properly catch and handle the exception
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10
2020-04-02T11:58:29Z
2020-05-28T22:10:39Z
2020-04-28T19:40:32Z
CONTRIBUTOR
null
Now no more warnings - [x] closes #32951 - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
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ENH: provide standard BaseIndexers in pandas.api.indexers
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15
2020-04-02T12:36:58Z
2020-04-09T06:34:57Z
2020-04-08T17:20:51Z
MEMBER
null
- [X] closes #33201 - [X] 1 test modified / 1 passed - [X] passes `black pandas` - [X] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [X] whatsnew entry This PR adds a forward-looking `pandas.api.indexers.BaseIndexer` subclass implementation and exposes it to users as discussed in #33180 . ### Exposing other indexers It is also possible to expose a backward-looking indexer simply by exposing `pandas.core.window.indexers.FixedWindowIndexer` through the API. Seems redundant to me as this is basically the same as supplying an integer as the window argument when creating a rolling object but it can be done for consistency. I'd be grateful for a discussion. ### Note on tests The class is incorporated into `test_rolling_forward_window` in `test_base_indexer.py` and this serves as a test that the new indexer is working correctly. ### Notes on performance I've tested the implementation and it shows comparable performance to `pandas.core.window.indexers.FixedWindowIndexer`. In my tests the new indexer was slightly faster, either by luck, or because I streamlined the backward-looking indexer a bit when making the forward-looking one.
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Warning "Try using .loc[row_indexer,col_indexer] = value instead" is given when using ".loc"
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2020-04-02T12:53:19Z
2020-04-03T16:23:49Z
2020-04-03T16:23:49Z
NONE
null
#### Code Sample, a copy-pastable example if possible TLDR; Pandas warning is confusing since it recommends what seems to cause the warning. ```python # run this in one cell of a freshly started Jupyterlab Notebook # the warning is shown once, to see it again, restart the kernel import pandas as pd df = pd.DataFrame([list(range(1000)), list(range(1000)), list(range(1000)), list(range(1000))]).T df2 = df[[1, 3]] df2.loc[df2[1] > 500, 'marker'] = True ``` #### Problem description This gives out the following warning: ``` C:\Python37\lib\site-packages\pandas\core\indexing.py:844: SettingWithCopyWarning: A value is trying to be set on a copy of a slice from a DataFrame. Try using .loc[row_indexer,col_indexer] = value instead See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy self.obj[key] = _infer_fill_value(value) C:\Python37\lib\site-packages\pandas\core\indexing.py:965: SettingWithCopyWarning: A value is trying to be set on a copy of a slice from a DataFrame. Try using .loc[row_indexer,col_indexer] = value instead See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy self.obj[item] = s ``` This warning has confused me a many, many times, mainly, because it suggests "try using .loc" when that's exactly what I'm doing. (I followed the link and read the doc and now know that I should have made a copy the line before) - still the suggestion to use .loc is not helful here. #### Expected Output Remove the line "Try using .loc[row_indexer,col_indexer] = value instead" when the code is using ".loc". The rest of the warning is fine. #### Output of ``pd.show_versions()`` <details> [paste the output of ``pd.show_versions()`` here below this line] INSTALLED VERSIONS ------------------ commit : None python : 3.7.4.final.0 python-bits : 64 OS : Windows OS-release : 7 machine : AMD64 processor : Intel64 Family 6 Model 42 Stepping 7, GenuineIntel byteorder : little LC_ALL : None LANG : DE LOCALE : None.None pandas : 1.0.1 numpy : 1.16.2 pytz : 2018.7 dateutil : 2.7.5 pip : 20.0.2 setuptools : 40.8.0 Cython : None pytest : 5.2.0 hypothesis : None sphinx : 1.7.5 blosc : None feather : None xlsxwriter : 1.1.2 lxml.etree : 4.3.2 html5lib : None pymysql : 0.9.3 psycopg2 : None jinja2 : 2.11.1 IPython : 7.0.1 pandas_datareader: None bs4 : 4.6.3 bottleneck : None fastparquet : None gcsfs : None lxml.etree : 4.3.2 matplotlib : 3.0.3 numexpr : None odfpy : None openpyxl : 2.5.12 pandas_gbq : None pyarrow : None pytables : None pytest : 5.2.0 pyxlsb : None s3fs : None scipy : 1.2.1 sqlalchemy : 1.2.15 tables : None tabulate : None xarray : None xlrd : None xlwt : None xlsxwriter : 1.1.2 numba : None </details>
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33,238
CI/COMPAT: Linux py37_np_dev pipeline timeouts
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1
2020-04-02T14:17:55Z
2020-05-26T09:39:13Z
2020-04-02T21:13:16Z
MEMBER
null
#### Problem description Linux py37_np_dev pipeline appears to timeout for everyone after 60 minutes. There are a couple hundred thousand errors like this: ``` Exception ignored in: 'pandas.io.sas._sas.Parser.process_byte_array_with_data' DeprecationWarning: tostring() is deprecated. Use tobytes() instead. DeprecationWarning: tostring() is deprecated. Use tobytes() instead. ``` Here is a [link](https://dev.azure.com/pandas-dev/pandas/_build/results?buildId=32212&view=logs&j=3a03f79d-0b41-5610-1aa4-b4a014d0bc70&t=4d05ed0e-1ed3-5bff-dd63-1e957f2766a9&l=792078) to it failing for me.
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33,239
Unable to Build pandas with Py38, macOS (clang?) and Cython>0.29.13 (tp_print warning)
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2020-04-02T16:52:24Z
2020-09-25T22:36:13Z
2020-09-25T22:36:13Z
MEMBER
null
Dedicated issue for @jbrockmendel callout in https://github.com/pandas-dev/pandas/issues/30609#issuecomment-605373212 I opened an issue on the Cython side as well https://github.com/cython/cython/issues/3474 There's a rabbit hole of conversation with this going back to CPython . This may just be a temporary issue for Py38, so one "workaround" could be to just add `-Wno-deprecated-declaration` when these particular combination of things is detected, though of course an actual fix would be ideal
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592,799,858
MDExOlB1bGxSZXF1ZXN0Mzk3NzEyODM5
33,240
CLN: remove Block.merge
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0
2020-04-02T17:22:50Z
2020-04-03T17:39:09Z
2020-04-03T17:37:51Z
MEMBER
null
Then move _merge_blocks to the one module where it is used, and add annotations
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tostring->tobytes
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4
2020-04-02T17:28:22Z
2020-05-05T09:10:25Z
2020-04-02T21:13:16Z
MEMBER
null
- [x] closes #33238 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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MDU6SXNzdWU1OTI4MDcyNTI=
33,242
agg behaviour depends on the number of arguments of the function
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2020-04-02T17:31:59Z
2020-10-11T16:59:47Z
null
NONE
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#### Code Sample, a copy-pastable example if possible ```python import pandas as pd df = pd.DataFrame({'a': [1,2,3,4,5,6], 'b': [1,1,0,1,1,0], 'c': ['x','x','x','z','z','z'], 'd': ['s','s','s','d','d','d']}) def myprint2(x, y): print(x) df.groupby(['c'])[['a', 'b']].agg(myprint2, 0) ``` #### Problem description In the particular case of a groupby over 1 column ('c'), asking a subset of columns ('a' and 'b') and passing agg a function of 2 arguments ('mypring2'), a DataFrame of the full groups (including all columns) is passed to myprint2: ```python >>>> df.groupby(['c'])[['a', 'b']].agg(myprint2, 0) a b c d 0 1 1 x s 1 2 1 x s 2 3 0 x s a b c d 3 4 1 z d 4 5 1 z d 5 6 0 z d ``` For every group, I would have expected 2 calls of myprint2, one with Series 'a' and one with Series 'b'. This is particularly confusing, because agg would have the expected behaviour if groupby is called over a list or if a function of 1 argument is passed to agg: #### Expected Output I would have expected the same as if groupby is called over a list or if a function of 1 argument is passed to agg: ```python >>>> df.groupby(['c', 'd'])[['a', 'b']].agg(myprint2, 0) 0 1 1 2 2 3 Name: a, dtype: int64 3 4 4 5 5 6 Name: a, dtype: int64 0 1 1 1 2 0 Name: b, dtype: int64 3 1 4 1 5 0 Name: b, dtype: int64 >>>> df.groupby(['c'])[['a', 'b']].agg(print) 0 1 1 2 2 3 Name: a, dtype: int64 3 4 4 5 5 6 Name: a, dtype: int64 0 1 1 1 2 0 Name: b, dtype: int64 3 1 4 1 5 0 Name: b, dtype: int64 ``` #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.7.4.final.0 python-bits : 64 OS : Windows OS-release : 10 machine : AMD64 processor : Intel64 Family 6 Model 78 Stepping 3, GenuineIntel byteorder : little LC_ALL : None LANG : None LOCALE : None.None pandas : 1.0.3 numpy : 1.18.2 pytz : 2019.3 dateutil : 2.8.1 pip : 20.0.2 setuptools : 46.1.1 Cython : None pytest : None hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : None IPython : None pandas_datareader: None bs4 : None bottleneck : None fastparquet : None gcsfs : None lxml.etree : None matplotlib : None numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pytables : None pytest : None pyxlsb : None s3fs : None scipy : 1.4.1 sqlalchemy : None tables : None tabulate : None xarray : None xlrd : 1.2.0 xlwt : None xlsxwriter : None numba : None </details>
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33,243
DOC: Contributing - escaping backslash.
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1
2020-04-02T18:05:19Z
2020-04-02T23:25:34Z
2020-04-02T23:25:28Z
CONTRIBUTOR
null
Non-escaped backslash disappeared in resulting doc. - [ ] closes #xxxx - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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592,827,387
MDExOlB1bGxSZXF1ZXN0Mzk3NzM1Njkw
33,244
CLN: Clean nanops.get_corr_func
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2
2020-04-02T18:06:58Z
2020-04-07T01:25:31Z
2020-04-07T00:18:58Z
MEMBER
null
Small cleaning (instead of creating a dictionary of functions and then returning only one, just return the one)
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592,832,792
MDU6SXNzdWU1OTI4MzI3OTI=
33,245
BUG: Categorical.values_for_(factorize|argsort) dont preserve order
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10
2020-04-02T18:16:10Z
2021-09-01T18:59:08Z
null
MEMBER
null
The docstrings for these two methods say that values_for_foo should preserve order, but for non-ordered Categoricals, the current implementation using self.codes is not order-preserving. Is this a problem cc @jorisvandenbossche ? `Categorical.values_for_rank` exists pretty much to solve this problem for rank and value_counts. We have a special case in core.algorithms using values_for_rank that we should ideally avoid.
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33,246
BLD: recursive inclusion of DLLs in package data
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12
2020-04-02T19:58:38Z
2020-05-26T09:37:43Z
2020-04-10T21:05:21Z
CONTRIBUTOR
null
- [x] step 1 towards #32857 Will also make a PR in https://github.com/MacPython/pandas-wheels to add the DLLs to the wheel packaging script
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33,247
BUG: Fix droped result column in groupby with as_index False
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15
2020-04-02T21:27:15Z
2020-09-05T19:04:49Z
2020-07-15T22:19:13Z
MEMBER
null
- [x] closes #32240 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry The aggregate function *lost* the results of the aggregate operation, if the ```as_index=False``` flag was set and one of the result columns is relabeled. The index was reset at first, adding columns to the DataFrame. The relabeling operation only took the columns before resetting the index as input. So the weird error occurred. I changed the order of the index reset and the relabeling. This fixes the issue.
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33,248
REF: do slicing before calling Block.to_native_types
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0
2020-04-02T22:31:00Z
2020-04-03T17:38:24Z
2020-04-03T17:34:13Z
MEMBER
null
Related upcoming steps: - Dispatch DatetimeBlock.to_native_types to DatetimeArray._format_native_types (identical behavior - Dispatch TimeDeltaBlock.to_native_types to TimedeltaArray._format_native_types (behavior changing, but there is a FIXME in the Block version) - Dispatch FloatBlock.to_native_types to Float64Index._format_native_types - Possibly rename to_native_types to something more informative? (i think there's an issue about deprecating/renaming the Index method) - in io.csvs use `df._data.apply` instead of iterating over blocks. Still touches internals, but its a lighter touch.
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33,249
REF: dispatch DatetimeBlock.to_native_types to DTA._format_native_types
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2020-04-03T00:44:48Z
2020-04-03T19:42:46Z
2020-04-03T19:33:31Z
MEMBER
null
xref #33248
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33,250
Display Timedelta nanoseconds
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3
2020-04-03T02:07:48Z
2020-04-03T19:13:12Z
2020-04-03T18:53:38Z
MEMBER
null
- [x] closes #9309 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry This allows us to make TimedeltaBlock.to_native_types dispatch to TimedeltaArray._format_native_types. ATM TDBlock.to_native_types has a comment ``` # FIXME: # should use the formats.format.Timedelta64Formatter here # to figure what format to pass to the Timedelta # e.g. to not show the decimals say ```
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33,251
Pandas using matplot displays an incorrect year on the x-axis date
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2020-04-03T02:28:30Z
2020-04-05T02:59:18Z
2020-04-03T21:34:58Z
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#### Code ```python # -*- coding: UTF-8 -*- import pandas as pd import datetime import matplotlib.pyplot as plt import matplotlib.dates as mdates hoje = datetime.datetime.now() data = hoje.strftime("%Y%m%d") dados_url = 'https://covid.saude.gov.br/assets/files/COVID19_'+data+'.csv' try: print(dados_url) dados = pd.read_csv(dados_url, sep=';', parse_dates=['data'], dayfirst=True) except Exception as e: print("Os dados para a data corrente ainda não foram atualizados, buscando dados do dia anterior...") print(e) DD = datetime.timedelta(days=1) hoje = hoje - DD data = hoje.strftime("%Y%m%d") print(str(hoje)) dados_url = 'https://covid.saude.gov.br/assets/files/COVID19_'+data+'.csv' print(str(dados_url)) dados = pd.read_csv(dados_url, sep=';', parse_dates=['data'], dayfirst=True) #pd.set_option('display.max_rows', None) dados_alagoas = dados[dados['estado'] == 'AL'] dados_alagoas.set_index('data',inplace=True) #print(dados_alagoas) plt.style.use('ggplot') fig, ax = plt.subplots(figsize=(30,15)) dados_alagoas.plot(ax=ax, rot=75) #grafico em barras #dados_alagoas.plot(ax=ax, rot=75, kind='bar', width=2.0) ax.xaxis.set_major_locator(mdates.DayLocator(interval=1)) ax.xaxis.set_major_formatter(mdates.DateFormatter('%d/%m/%y')) ax.set_title('Incidência do COVID-19 em Alagoas em '+hoje.strftime('%d/%m/%Y')) ax.set_ylabel('Ocorrências') ax.set_xlabel('Data') plt.show() ``` #### Problem description In the graph, the date axis is not being displayed correctly with date formatting, the year that should be "2020" and is displayed as "51" #### Output of ``pd.show_versions()`` INSTALLED VERSIONS ------------------ commit : None python : 3.8.2.final.0 python-bits : 64 OS : Linux OS-release : 5.4.28-1-MANJARO machine : x86_64 processor : byteorder : little LC_ALL : None LANG : pt_BR.UTF-8 LOCALE : pt_BR.UTF-8 pandas : 1.0.3 numpy : 1.18.2 pytz : 2019.3 dateutil : 2.8.1 pip : 20.0.2 setuptools : 46.1.3 Cython : 0.29.16 pytest : 5.4.1 hypothesis : None sphinx : 2.4.4 blosc : 1.8.3 feather : None xlsxwriter : 1.2.8 lxml.etree : 4.5.0 html5lib : 1.0.1 pymysql : 0.9.3 psycopg2 : 2.8.4 (dt dec pq3 ext lo64) jinja2 : 2.11.1 IPython : 7.13.0 pandas_datareader: 0.8.1 bs4 : 4.8.2 bottleneck : 1.3.2 fastparquet : None gcsfs : None lxml.etree : 4.5.0 matplotlib : 3.2.1 numexpr : 2.7.1 odfpy : None openpyxl : 3.0.3 pandas_gbq : None pyarrow : None pytables : None pytest : 5.4.1 pyxlsb : None s3fs : None scipy : 1.4.1 sqlalchemy : 1.3.15 tables : 3.6.1 tabulate : 0.8.7 xarray : None xlrd : 1.2.0 xlwt : 1.3.0 xlsxwriter : 1.2.8 numba : None None ![Figure_1](https://user-images.githubusercontent.com/8952225/78317749-81d49600-7539-11ea-9de4-c2c62107c2f0.png)
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33,252
INT: provide helpers for accessing the values of DataFrame columns
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16
2020-04-03T07:53:42Z
2020-04-10T17:57:22Z
2020-04-10T17:37:22Z
MEMBER
null
Broken off from https://github.com/pandas-dev/pandas/pull/32867, also mentioned this in https://github.com/pandas-dev/pandas/pull/33229 In general, when doing certain things column-wise, we often just need the arrays (eg to calculate a reduction, to check the dtype, ..), and creating Series gives unnecessary overhead in that case. In this PR, I added therefore two helper functions for making it easier to do this (`_ixs_values` as variant on `_ixs` but returning the array instead of Series, and `_iter_arrays` that calls `_ixs_values` for each column iteratively as an additional helper function). I also used it in one place as illustration (in `_reduce`, what I was working on in https://github.com/pandas-dev/pandas/pull/32867, but it can of course be used more generally). In that example case, it is to replace an apply: ``` In [1]: df = pd.DataFrame(np.random.randint(1000, size=(10000,10))).astype("Int64").copy() In [2]: from pandas.core.dtypes.common import is_datetime64_any_dtype, is_period_dtype In [3]: %timeit df.dtypes.apply(lambda x: is_datetime64_any_dtype(x) or is_period_dtype(x)) 256 µs ± 2.66 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each) In [5]: %timeit np.array([is_datetime64_any_dtype(values) or is_period_dtype(values) for values in df._iter_arrays()], dtype=bool) 56.2 µs ± 282 ns per loop (mean ± std. dev. of 7 runs, 10000 loops each) ``` (and this is only fo 10 columns) @jbrockmendel
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33,253
BUG: BooleanArray.any with all False values and skipna=False is buggy
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9
2020-04-03T08:31:58Z
2020-04-10T08:37:16Z
2020-04-10T08:37:16Z
MEMBER
null
From a report on my blog, this seems buggy: ``` In [10]: a = pd.array([False, False], dtype="boolean") In [11]: a Out[11]: <BooleanArray> [False, False] Length: 2, dtype: boolean In [12]: a.any() Out[12]: False In [13]: a.any(skipna=False) Out[13]: <NA> ``` I don't think there is a reason to return NA if there are no NAs in the array? (even with `skipna=False`) We probably need to do a check for the presence of any NA here in the `else` clause: https://github.com/pandas-dev/pandas/blob/37dc5dc391333fede424964a3c8ab034318d6ed4/pandas/core/arrays/boolean.py#L520-L526
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33,254
API: EA interface - strictness of _from_sequence
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2020-04-03T09:41:00Z
2020-12-04T21:08:49Z
null
MEMBER
null
Copying part of the discussion out of https://github.com/pandas-dev/pandas/issues/32586 into a more specific issue. Problem statement: currently, `_from_sequence` is not very explicit in what it should accept as scalars. In practice, this means that it is mostly very liberal, as it is also used under the hood when creating an array of any list-like of objects in `pd.array(.., dtype)`. However, in some cases we need a more strict version that *only* accepts actual scalars of the array (meaning, the type of values you get from `array[0]` or `array.max()` in case it supports that kind of reductions). This causes some issues like https://github.com/pandas-dev/pandas/issues/31108. So, what should `_from_sequence` accept? Should it only be sequences that are unambiguously this dtype? I think it will be useful to have a "strict" version that basically only accepts instances of ExtensionDtype.type or NA values. But we also still need a "liberal" method for the other use cases like `pd.array(.., dtype)`. The strict version would be used when, for some reason, we go through object dtype (or a list of scalars, or something equivalent). For example in groupby, where we assemble a list of scalars from the reductions into a new column. From a testing point of view, that would mean we can test that `EA._the_strict_method(np.asarray(EA, dtype=object), dtype=EA.dtype)` and `EA._the_strict_method(list(EA), dtype=EA.dtype)` can roundtrip faithfully. --- Assuming we agree that we need a strict version for certain use cases, I think there are two main options: 1) Keep `_from_sequence` as is, and add a new `_from_scalars` method that is more strict (that in the base class can call `_from_sequence` initially for backwards compatibility). We can use `_from_scalars` in those cases where we need the strict version, and keep using `_from_sequence` elsewhere (eg in `pd.array(.., dtype=)`) 2) Update the expectation in our spec that `_from_sequence` should only accept a sequence of scalars of the array's type (so make `_from_sequence` the strict method), and use the `astype` machinery for construction. Basically, the current flexible `_from_sequence` would then be equivalent to casting an object ndarray (or generally any type) to your EA dtype. Are there preferences? (or other options?) From a backwards compatibility point of view, I think both are similar (in both cases you need to update a method (`_from_scalars` or `_from_sequence`), and in both cases initially the flexible version will still be used as fallback until the update is done). The second option of course requires an update to the astype machinery (#22384), which doesn't exist today, but on the other hand is also something we need to do at some point eventually (but a much bigger topic to solve).
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33,255
BUG: Cant access some `TimedeltaProperties` components directly
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7
2020-04-03T09:47:06Z
2020-04-04T18:32:25Z
2020-04-04T18:32:24Z
MEMBER
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XREF: https://github.com/pandas-dev/pandas/pull/33208#discussion_r402181910 --- #### Note: I'm using "hours" here for the examples, but this applies to - hours - minutes - milliseconds --- #### Short explanation: Not all components are exposed directly: Example: ``` In [1]: import pandas as pd In [2]: s = pd.Series(pd.timedelta_range(start="1 day", periods=5, freq="H")) In [3]: s.dt.components Out[3]: days hours minutes seconds milliseconds microseconds nanoseconds 0 1 0 0 0 0 0 0 1 1 1 0 0 0 0 0 2 1 2 0 0 0 0 0 3 1 3 0 0 0 0 0 4 1 4 0 0 0 0 0 In [4]: s.dt.days Out[4]: 0 1 1 1 2 1 3 1 4 1 dtype: int64 In [5]: s.dt.hours --------------------------------------------------------------------------- AttributeError Traceback (most recent call last) <ipython-input-5-86f203890f2a> in <module> ----> 1 s.dt.hours AttributeError: 'TimedeltaProperties' object has no attribute 'hours' ``` --- #### Long explanation: If we create a series that contains a timedelta, we can access only some of the components directly. Example setup: ``` In [1]: import pandas as pd In [2]: s = pd.Series(pd.timedelta_range(start="1 day", periods=5, freq="H")) In [3]: s Out[3]: 0 1 days 00:00:00 1 1 days 01:00:00 2 1 days 02:00:00 3 1 days 03:00:00 4 1 days 04:00:00 dtype: timedelta64[ns] In [4]: s.dt.components Out[4]: days hours minutes seconds milliseconds microseconds nanoseconds 0 1 0 0 0 0 0 0 1 1 1 0 0 0 0 0 2 1 2 0 0 0 0 0 3 1 3 0 0 0 0 0 4 1 4 0 0 0 0 0 ``` We can access "days" and "seconds" directly, for example: ``` In [5]: s.dt.days Out[5]: 0 1 1 1 2 1 3 1 4 1 dtype: int64 In [6]: s.dt.seconds Out[6]: 0 0 1 3600 2 7200 3 10800 4 14400 dtype: int64 ``` But if we try to access "hours" for example directly: ``` In [7]: s.dt.hours --------------------------------------------------------------------------- AttributeError Traceback (most recent call last) <ipython-input-7-86f203890f2a> in <module> ----> 1 s.dt.hours AttributeError: 'TimedeltaProperties' object has no attribute 'hours' ``` --- Output of ``` pd.show_versions() ```: <details> INSTALLED VERSIONS ------------------ commit : 37dc5dc391333fede424964a3c8ab034318d6ed4 python : 3.7.6.final.0 python-bits : 64 OS : Linux OS-release : 5.5.13.a-1-hardened Version : #1 SMP PREEMPT Wed, 25 Mar 2020 21:46:24 +0000 machine : x86_64 processor : byteorder : little LC_ALL : None LANG : en_US.UTF-8 LOCALE : en_US.UTF-8 pandas : 1.1.0.dev0+1089.g37dc5dc39 numpy : 1.18.1 pytz : 2019.3 dateutil : 2.8.1 pip : 20.0.2 setuptools : 46.0.0.post20200311 Cython : 0.29.16 pytest : 5.4.1 hypothesis : 5.8.0 sphinx : 2.4.4 blosc : None feather : None xlsxwriter : 1.2.8 lxml.etree : 4.5.0 html5lib : 1.0.1 pymysql : None psycopg2 : None jinja2 : 2.11.1 IPython : 7.13.0 pandas_datareader: None bs4 : 4.8.2 bottleneck : 1.3.2 fastparquet : 0.3.3 gcsfs : None matplotlib : 3.2.1 numexpr : 2.7.1 odfpy : None openpyxl : 3.0.1 pandas_gbq : None pyarrow : 0.16.0 pytables : None pyxlsb : None s3fs : 0.4.2 scipy : 1.4.1 sqlalchemy : 1.3.15 tables : 3.6.1 tabulate : 0.8.7 xarray : 0.15.1 xlrd : 1.2.0 xlwt : 1.3.0 numba : 0.48.0 </details>
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593,299,194
MDU6SXNzdWU1OTMyOTkxOTQ=
33,256
REGR: DataFrame.mean(numeric_only=True) raises AttributeError on v1.0.3
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2020-04-03T10:59:48Z
2020-05-26T09:36:15Z
2020-05-01T18:19:11Z
MEMBER
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#### Code Sample, a copy-pastable example if possible ```python >>> import numpy as np >>> >>> import pandas as pd >>> >>> pd.__version__ '1.0.3' >>> >>> df_wide = pd.DataFrame(np.random.randint(1000, size=(1000, 100))).astype("Int64").copy() >>> >>> df_wide.mean(numeric_only=True) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Users\simon\pandas\pandas\core\generic.py", line 11215, in stat_func f, name, axis=axis, skipna=skipna, numeric_only=numeric_only File "C:\Users\simon\pandas\pandas\core\frame.py", line 7896, in _reduce res = df._data.reduce(op, axis=1, skipna=skipna, **kwds) File "C:\Users\simon\pandas\pandas\core\internals\managers.py", line 351, in reduce bres = func(blk.values, *args, **kwargs) File "C:\Users\simon\pandas\pandas\core\nanops.py", line 69, in _f return f(*args, **kwargs) File "C:\Users\simon\pandas\pandas\core\nanops.py", line 102, in f if values.size == 0 and kwds.get("min_count") is None: AttributeError: 'IntegerArray' object has no attribute 'size' >>> ``` #### Problem description This is a regression from 0.25.3 0aa48f7d9269206dea492ed14d5dfc6f46468de3 is the first bad commit commit 0aa48f7d9269206dea492ed14d5dfc6f46468de3 Author: jbrockmendel <jbrockmendel@gmail.com> Date: Wed Jan 1 09:18:20 2020 -0800 PERF: perform reductions block-wise (#29847) on master raises `AttributeError: 'int' object has no attribute 'dtype'` ``` >>> df_wide.mean(numeric_only=True) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Users\simon\pandas\pandas\core\generic.py", line 11114, in stat_func func, name=name, axis=axis, skipna=skipna, numeric_only=numeric_only File "C:\Users\simon\pandas\pandas\core\frame.py", line 7990, in _reduce res = df._data.reduce(blk_func) File "C:\Users\simon\pandas\pandas\core\internals\managers.py", line 362, in reduce bres = func(blk.values, *args, **kwargs) File "C:\Users\simon\pandas\pandas\core\frame.py", line 7985, in blk_func return op(values, axis=0, skipna=skipna, **kwds) File "C:\Users\simon\pandas\pandas\core\nanops.py", line 120, in f result = bn_func(values, axis=axis, **kwds) File "<__array_function__ internals>", line 6, in nanmean File "C:\Users\simon\Anaconda3\envs\pandas-dev\lib\site-packages\numpy\lib\nanfunctions.py", line 952, in nanmean avg = _divide_by_count(tot, cnt, out=out) File "C:\Users\simon\Anaconda3\envs\pandas-dev\lib\site-packages\numpy\lib\nanfunctions.py", line 219, in _divide_by_count return a.dtype.type(a / b) AttributeError: 'int' object has no attribute 'dtype' ``` #### Expected Output ``` >>> import numpy as np >>> >>> import pandas as pd >>> >>> pd.__version__ '0.25.3' >>> >>> df_wide = pd.DataFrame(np.random.randint(1000, size=(1000, 100))).astype("Int64").copy() >>> >>> df_wide.mean(numeric_only=True) 0 520.057 1 507.735 2 501.618 3 506.590 4 501.500 ... 95 507.594 96 483.273 97 506.330 98 497.068 99 508.118 Length: 100, dtype: float64 >>> ```
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33,257
CLN: Reorgenized doctests order
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2020-04-03T11:10:20Z
2020-04-03T14:01:48Z
2020-04-03T13:08:38Z
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- [ ] closes #xxxx - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry --- This does not changes anything, just moving things around, to make it more manageable (IMO)
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33,258
import pandas error.
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3
2020-04-03T11:12:28Z
2020-04-03T12:03:44Z
2020-04-03T11:17:54Z
NONE
null
dear pandas-dev, I am writing this to yo because I have facing problem with pandas lib to use it with python 3.8, when I try to import pandas its shows error, please check attachment for more details. Thanks. ========================================================= error message ========================================================== >>> import pandas Traceback (most recent call last): File "<pyshell#1>", line 1, in <module> import pandas File "C:\Python\Python38-32\lib\site-packages\pandas\__init__.py", line 55, in <module> from pandas.core.api import ( File "C:\Python\Python38-32\lib\site-packages\pandas\core\api.py", line 29, in <module> from pandas.core.groupby import Grouper, NamedAgg File "C:\Python\Python38-32\lib\site-packages\pandas\core\groupby\__init__.py", line 1, in <module> from pandas.core.groupby.generic import DataFrameGroupBy, NamedAgg, SeriesGroupBy File "C:\Python\Python38-32\lib\site-packages\pandas\core\groupby\generic.py", line 60, in <module> from pandas.core.frame import DataFrame File "C:\Python\Python38-32\lib\site-packages\pandas\core\frame.py", line 124, in <module> from pandas.core.series import Series File "C:\Python\Python38-32\lib\site-packages\pandas\core\series.py", line 4572, in <module> Series._add_series_or_dataframe_operations() File "C:\Python\Python38-32\lib\site-packages\pandas\core\generic.py", line 10349, in _add_series_or_dataframe_operations from pandas.core.window import EWM, Expanding, Rolling, Window File "C:\Python\Python38-32\lib\site-packages\pandas\core\window\__init__.py", line 1, in <module> from pandas.core.window.ewm import EWM # noqa:F401 File "C:\Python\Python38-32\lib\site-packages\pandas\core\window\ewm.py", line 5, in <module> import pandas._libs.window.aggregations as window_aggregations ImportError: DLL load failed while importing aggregations: The specified module could not be found. ============================================================== [import pandas error report.pdf](https://github.com/pandas-dev/pandas/files/4426773/import.pandas.error.report.pdf)
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593,351,573
MDExOlB1bGxSZXF1ZXN0Mzk4MTQ4MTkz
33,259
DOC: Added an example for each series.dt field accessor
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2
2020-04-03T12:35:53Z
2020-04-07T10:48:22Z
2020-04-06T22:10:19Z
MEMBER
null
- [x] xref https://github.com/pandas-dev/pandas/pull/33208#discussion_r402189839 - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry --- I can also add examples that would cover, ````TimedeltaProperties``` and ```PeriodProperties```, but I think that would be over verbose, wdyt?
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DOC: Fixed examples in `pandas/core/accessor.py`
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1
2020-04-03T14:01:04Z
2020-04-06T08:35:11Z
2020-04-04T15:29:08Z
MEMBER
null
Since this changes require an interactive Ipython shell (I think), we can't run check them from pytest. This is what the docs looks like: Before: ![Screenshot_20200403_170159](https://user-images.githubusercontent.com/50263213/78368644-9c0b8400-75cc-11ea-9061-24652f2bdfca.png) After: ![register_acc](https://user-images.githubusercontent.com/50263213/78368530-71b9c680-75cc-11ea-8ab5-d2ee2eadc727.png)
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MDExOlB1bGxSZXF1ZXN0Mzk4MjI2NTc0
33,261
PERF: masked ops for reductions (min/max)
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1
2020-04-03T15:04:06Z
2020-04-07T06:57:46Z
2020-04-06T23:28:01Z
MEMBER
null
Follow-up on https://github.com/pandas-dev/pandas/pull/30982, adding similar mask reduction but now for min/max.
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593,488,868
MDExOlB1bGxSZXF1ZXN0Mzk4MjYwOTMx
33,262
TST: don't assert that matplotlib rejects shorthand hex colors
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3
2020-04-03T16:09:29Z
2020-04-03T19:14:34Z
2020-04-03T19:14:24Z
CONTRIBUTOR
null
From 3.2 [it accepts them](https://matplotlib.org/users/prev_whats_new/whats_new_3.2.0.html#digit-and-4-digit-hex-colors). [Test failure log](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=954647) (from Debian's pandas 0.25, so includes other issues we don't now have - this one is DID NOT RAISE).
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33,263
DOC: Fixed examples in `pandas/core/aggregation.py`
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4
2020-04-03T16:28:45Z
2020-04-07T18:49:39Z
2020-04-07T17:53:06Z
MEMBER
null
- [ ] closes #xxxx - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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593,528,359
MDU6SXNzdWU1OTM1MjgzNTk=
33,264
Append Mode for ExcelWriter with "xlsxwriter"
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2
2020-04-03T17:20:29Z
2020-04-03T18:36:09Z
2020-04-03T17:34:43Z
NONE
null
**Problem description** ExcelWriter's append mode doesn't work when setting default xlsxwriter. To use append mode, I have to set the engine openpyxl. I think it is inconvenient and slow. So I suggest ExcelWriter can be set as append mode when default (xlsxwriter). **Sample Code** **AS-IS** ```python writer = pd.ExcelWriter('APT_TRADE.xlsx', engine='openpyxl', mode='a') apt_dataframe.to_excel(writer, sheet_name='city-' + date.strftime("%Y%m"), index=False) ``` **TO-BE** ```python writer = pd.ExcelWriter('APT_TRADE.xlsx', mode='a') apt_dataframe.to_excel(writer, sheet_name='city-' + date.strftime("%Y%m"), index=False) ```
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33,265
TST: add date range test for reindex case from GH-32740
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4
2020-04-03T17:48:39Z
2020-04-05T18:28:26Z
2020-04-05T18:28:17Z
CONTRIBUTOR
null
- [x] closes #32740 - [x] tests added / passed - [x] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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33,266
DOC: Fixed examples in `pandas/core/window`
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TST: add DataFrame test for construct from tuple case from GH-32776
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TYP: Fixed type annotaions in `scripts/validate_rst_title_capitalization`
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Consider adding isnative property to StringDtype?
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2020-04-03T19:09:19Z
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#### Code Sample Assuming Jupyter notebook environment ```bash !pip install rpy2 ``` ```python %load_ext rpy2.ipython from pandas import * characters= = Series(['a', 'b'], dtype=StringDtype()) %R -i characters ``` Leads to an error in rpy2: ``` AttributeError: 'StringDtype' object has no attribute 'isnative'` ``` which I described in https://github.com/rpy2/rpy2/issues/669. However, as this concerns a new experimental feature in pandas I wanted to bring a difference in public interface between different Dtypes to your attention. #### Problem description The new, experimental [`StringDtype`](https://github.com/pandas-dev/pandas/blob/845c50c9e2ce611c773422ae9db7097fc3e5fba5/pandas/core/arrays/string_.py#L27) inherits from [`ExtensionDtype`](https://github.com/pandas-dev/pandas/blob/dd03c196d684d6ed594ee58451b0a36d7935a1ea/pandas/core/dtypes/base.py#L17) rather than from [`PandasExtensionDtype`](https://github.com/pandas-dev/pandas/blob/e84c3f9abb32a10b6561489589a06a1a3c7623e0/pandas/core/dtypes/dtypes.py#L111). This means that it does not have `isnative` property. #### Questions - is it intended to have some Dtypes with `isnative` attribute and others without? - in your opinion, should the rpy2 issue be worked around downstream or should the API be amended in pandas (I expect that other packages may also expect dtypes to have certain attributes from `PandasExtensionDtype`)? #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.8.1.final.0 python-bits : 64 OS : Linux OS-release : 5.3.0-26-generic machine : x86_64 processor : x86_64 byteorder : little LC_ALL : None LANG : en_GB.UTF-8 LOCALE : en_GB.UTF-8 pandas : 1.0.3 numpy : 1.18.2 pytz : 2019.3 dateutil : 2.8.1 pip : 19.2.3 setuptools : 41.2.0 Cython : None pytest : 5.4.1 hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : 2.11.1 IPython : 7.13.0 pandas_datareader: None bs4 : None bottleneck : None fastparquet : None gcsfs : None lxml.etree : None matplotlib : 3.2.1 numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pytables : None pytest : 5.4.1 pyxlsb : None s3fs : None scipy : 1.4.1 sqlalchemy : None tables : None tabulate : None xarray : None xlrd : None xlwt : None xlsxwriter : None numba : None </details>
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REF: dispatch TDBlock.to_native_types to TDA._format_native_types
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MDExOlB1bGxSZXF1ZXN0Mzk4MzQ4MDQz
33,271
CLN: Added static types _libs/algos
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1
2020-04-03T19:31:02Z
2020-04-06T08:28:14Z
2020-04-05T20:00:29Z
MEMBER
null
- [ ] closes #xxxx - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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593,600,088
MDU6SXNzdWU1OTM2MDAwODg=
33,272
HUH?: DataFrame[categorical].replace
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0
2020-04-03T19:42:10Z
2020-09-21T02:01:49Z
2020-09-21T02:01:49Z
MEMBER
null
When we have a DataFrame with 2 Categorical columns with matching dtypes and do a `.replace` on that DataFrame, the results do not match what we would get if we operate column-wise. Instead the results we get look like what we'd get if we stacked the columns, replaced, then unstacked. i.e. AFAICT we are doing gymnastics to behave as if CategoricalBlock supported 2D Categorical. From tests.frame.methods.test_replace: ``` replace_dict = {'a': 1, 'b': 2} value = 3 df = pd.DataFrame([[1, 1], [2, 2]], columns=["a", "b"], dtype="category") final_data = [[3, 1], [2, 3]] expected = pd.DataFrame(final_data, columns=["a", "b"], dtype="category") expected["a"] = expected["a"].cat.set_categories([1, 2, 3]) expected["b"] = expected["b"].cat.set_categories([1, 2, 3]) result = df.replace(replace_dict, value) tm.assert_frame_equal(result, expected) # this part is no longer from the test col_wise = {col: df[col].replace(replace_dict[col], value) for col in df.columns} result2 = pd.DataFrame(col_wise) result2["a"].dtype CategoricalDtype(categories=[3, 2], ordered=False) ```
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593,608,028
MDExOlB1bGxSZXF1ZXN0Mzk4MzU4OTkz
33,273
Pass method in __finalize__
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16
2020-04-03T19:58:08Z
2020-04-06T22:04:50Z
2020-04-06T22:04:41Z
CONTRIBUTOR
null
This passes `method` everywhere we use `__finalize__`. I'm trying to get a better sense for 1. When we call finalize (and when we fail too) 2. When we finalize multiple times 3. The overhead of finalize I haven't called it anywhere new yet (followup PR with that coming though).
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MDExOlB1bGxSZXF1ZXN0Mzk4MzYwNzQy
33,274
Unpin mypy
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15
2020-04-03T20:02:39Z
2020-04-22T12:56:49Z
2020-04-22T04:11:29Z
MEMBER
null
Right now we have mypy 0.73 pinned in CI. However, newer versions will yield a lot of warnings like this: ```sh pandas/core/groupby/base.py:32: error: "GroupByMixin" has no attribute "obj" pandas/core/groupby/base.py:36: error: "GroupByMixin" has no attribute "_attributes" pandas/core/groupby/base.py:40: error: "GroupByMixin" has no attribute "_groupby" pandas/core/groupby/base.py:42: error: "GroupByMixin" has no attribute "_groupby" pandas/core/groupby/base.py:44: error: Too many arguments for "GroupByMixin" pandas/core/groupby/base.py:44: error: Unexpected keyword argument "groupby" for "GroupByMixin" pandas/core/groupby/base.py:44: error: Unexpected keyword argument "parent" for "GroupByMixin" pandas/core/groupby/base.py:45: error: "GroupByMixin" has no attribute "_reset_cache" ``` Most mixins we have will be problematic, if not all. Fortunately newer versions of mypy offer support for Protocols as a "self type", which were officially introduced in Python 3.8 This draft is an attempt at clarifying how that would work and seeing if it makes sense for the group. Depending on feedback, we may want to consider some kind of compat for this model to get it to work across Py36 and Py37 so our mypy doesn't lag too far behind More info on the mypy release notes: https://mypy-lang.blogspot.com/2019/11/mypy-0.html @simonjayhawkins
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593,639,736
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33,275
Added finalize benchmark
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0
2020-04-03T21:03:52Z
2020-04-06T18:36:01Z
2020-04-06T18:35:58Z
CONTRIBUTOR
null
This adds a benchmark for finalize. It scales with the number of `attrs`.
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EA interface - requirements for "hashable, value+order-preserving ndarray"
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8
2020-04-03T21:21:09Z
2020-09-17T22:35:15Z
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MEMBER
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Across a set of issues/PRs (eg https://github.com/pandas-dev/pandas/issues/32586, https://github.com/pandas-dev/pandas/issues/32673, https://github.com/pandas-dev/pandas/pull/33064), there has lately been quite some discussion regarding `_values_for_factorzie` / `_values_for_argsort`, the need for roundtrippability, the need for order-preserving, the need for `_ndarray_values`, ... Those different questions and topics that came up (as far as I kept track, probably not complete! but already too long .. ;)): * In https://github.com/pandas-dev/pandas/issues/32586, the question was raised what the difference is between `_values_for_argsort` and `_values_for_factorize`, and whether we need both. Some difference that came up: * The main difference might be that the values in `_values_for_factorize` need to be hashable, while the ones in `_values_for_argsort` don't need to be (although this difference is not properly documented). Looking back at https://github.com/pandas-dev/pandas/pull/19957 from @TomAugspurger, it was mentioned the that "sortable" is an easier requirement than what other algos like factorize might need. Related to this difference is that `_values_for_factorize` needs to return a dtype supported by the hashtables (int64, uint64, float64, object), while `_values_for_argsort` can return any sortable dtype (so also int8, int32, etc). * The return type is different: `_values_for_factorize` also returns a `na_value` sentinel, which means you can encode missing values in a different way than a "missing value" (eg nan in float dtype). While for `_values_for_argsort`, it simply returns one array (I would need to look into the details how missing values are handled here, it seems they are filtered out in `nargsort`, so it might not matter how they are encoded in the returned array). Is this sufficiently different to warrant two methods? Probably, with a bit work, they could be combined in a single method. However, their original purpose was *only* to help implement `EA.factorize()` and `EA.argsort()`. So for that purpose only, it might not necessarily be worth trying to combine them. And see the last bullet point for a more general "hashable, orderable array" * In addition, we actually also have `_values_for_rank` for Categorical, which we probably should try to get rid off as well -> https://github.com/pandas-dev/pandas/issues/33245 * I have argued that in general, we should also look at a "masked" version of eg `_values_for_factorize`. Having the option to return a (values, mask) tuple in addition to (values, na_sentinel) in case this is easier/cheaper to provide (which is especially the case for the masked arrays; this will need to support of the factorize algos for masks though -> eg https://github.com/pandas-dev/pandas/pull/33064) * We also had a vaguely defined `_ndarray_values` (https://github.com/pandas-dev/pandas/issues/23565), that was recently removed (https://github.com/pandas-dev/pandas/pull/32768). It was eg used in indexing code (index engine, joining indexes), where it was replaced with `_values_for_argsort` (https://github.com/pandas-dev/pandas/pull/32467, https://github.com/pandas-dev/pandas/pull/32611). * *What else can they be used for internally?* (`_values_for_factorize` / `_values_for_argsort`) As mentioned above, `_values_for_argsort` is since recently used for ExtensionIndex joining and engine values. Further, `_values_for_factorize` is used in the general merging code. However, the initial purpose of `_values_for_factorize` / `_values_for_argsort` was *not* to be used internally in pandas, but *only* has a helper to `EA.factorize()` and `EA.argsort()`. So following our current EA interface spec, we should not use them internally (which means we should fix the few cases where we started using them). The spec about `factorize` is clear that there are two ways to override its behaviour: implement `_values_for_factorize`/`_from_factorized`, or implement `factorize` itself: https://github.com/pandas-dev/pandas/blob/c47e9ca8b042881d44c9e679a9bf42bacabbb732/pandas/core/arrays/base.py#L740-L747 So external EAs are not guaranteed to have an efficient implementation of `_values_for_factorize`/`_values_for_argsort` (they still have the default `astype(object)` implementation). Fletcher is an example of external EAs that implement `factorize` and not `_values_for_factorize`. So ideally, for anything factorize/argsort-related, we should actually always call the `EA.factorize()` or `EA.argsort()` methods. * In https://github.com/pandas-dev/pandas/issues/32673, @jbrockmendel questioned whether the `_values_for_factorize` and `_from_factorized` combo should faithfully roundtrip? Currently, they do, but not necessarily when missing values are included. However, when only considering them as "internal" to the `EA.factorize()` implementation, this question doesn't actually matter. But it *does* matter when we want to use those values more generally. * I mentioned above that ideally we should use `factorize()` or `argsort()` directly as much as possible and avoid `_values_for_factorize/argsort` (since this is the official EA interface). However, there are still cases where such direct usage is not sufficient, and where we actually need some "values". For example, in the merging/joining code, you can't "just" `factorize()` the left and right array, because then the integer codes of left and right both don't necessarily can be matched (it depends on the uniques being present what those integers mean). I think it is clear we have *some* use case for "ndarray values", but so we should think about for which use cases we need that and what requirements we have for those. @jbrockmendel started to list some requirements here: https://github.com/pandas-dev/pandas/issues/32586#issuecomment-605082900 --- Having read again through all the recent issues and having written up the above, my *current* take-away point are: - To start, we should maybe put the questions around `_values_for_factorize` / `_values_for_argsort` aside for a moment. In principle they are internal to `EA.factorize()` / `EA.argsort()`, and so we *could* also remove those methods (if we wanted that) if we "just" require EA authors to implement factorize/argsort directly instead of through the helper _values_for.. . And if we figure out the general "ndarray values" requirements (see below), we can still come back to this to see if we can actually replace both `_values_for_factorize` / `_values_for_argsort` with this single "ndarray values" interface. - I now think that replacing `_ndarray_values` with `_values_for_argsort` to be able to remove `_ndarray_values` actually didn't solve much. We replaced one vaguely specified property (`_ndarray_values`) with another (`_values_for_argsort` for *other* purposes than just sorting, as there are currnetly also no guarantees / requirements outside of sorting specified for `_values_for_argsort`). - Instead, I would focus on figuring out what the requirements are for the "hashable / value preserving ndarray values": 1) What are the exact use cases we need this for? 2) What are the exact semantics needed for those use cases? (hashable, orderable, deterministic across arrays, ..) 3) Do those use cases need roundtripping of those values? 4) How would we implement those values for the internal EAs?* It might be that this ends up to be something close to what `_values_for_argsort` or `_values_for_factorize` now are. But I also think that my comment above about the possibility to include a mask in this interface is important for the nullable dtypes. - An alternative that we didn't really mention yet, is adding more to the EA interface instead of requiring this "ndarray values" concept. For example, if we want that external EAs can have control over joining, we could have a `EA.__join__(other_EA, how) -> Tuple[ndarray[int], ndarray[int]]` that returns indices into left and right EAs that determine how to join them. For joining that might be a relatively straightforward interface, for the indexing engine that looks more complex though (but so let's first define the use cases).
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CLN 31942/replace appender with doc 3
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12
2020-04-03T22:12:25Z
2020-06-19T16:36:01Z
2020-06-19T12:01:14Z
CONTRIBUTOR
null
- [x] ref #31942 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] replaces `Appender` decorator with `doc`
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ENH: Added schema kwarg to get_schema method
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2020-04-03T22:25:26Z
2020-11-29T04:42:42Z
2020-11-29T04:42:41Z
CONTRIBUTOR
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- [x] closes #28486 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry
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API/CLN: simplify CategoricalBlock.replace
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2020-04-04T00:52:22Z
2020-04-06T21:26:20Z
2020-04-06T21:16:03Z
MEMBER
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- [x] closes #33272 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry Makes DataFrame.replace on Categorical behave like Series.replace.
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Troubleshoot Travis
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2020-04-04T00:59:49Z
2020-04-04T17:17:08Z
2020-04-04T17:15:47Z
MEMBER
null
Reverts #33228, which appears to be the first build that started failing on Travis.
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33,281
ENH: Optimize nrows in read_excel
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2020-04-04T01:10:43Z
2020-08-18T19:44:29Z
2020-08-18T19:44:28Z
CONTRIBUTOR
null
- [x] closes #32727 - [x] tests passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] If header, skiprows and nrows are integers, rows that will be skipped are not loaded in get_sheet_data function.
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33,282
DOC: Fix error in Series.clip and DataFrame.clip
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2020-04-04T10:13:53Z
2020-04-04T21:23:10Z
2020-04-04T21:23:03Z
CONTRIBUTOR
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- [ ] closes #xxxx - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry Related to #27977. output of `python scripts/validate_docstrings.py pandas.Series.clip and pandas.DataFrame.clip`: ``` ################################################################################ ################################## Validation ################################## ################################################################################ ```
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DOC: Fix EX01 in DataFrame.drop_duplicates
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2020-04-04T12:15:30Z
2020-04-10T17:52:03Z
2020-04-10T17:51:59Z
CONTRIBUTOR
null
- [ ] closes #xxxx - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry Related to #27977. ``` ################################################################################ ################################## Validation ################################## ################################################################################
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33,284
BUG: fix boolean array skipna=False for .any() and .all()
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2020-04-04T14:36:37Z
2020-04-10T08:37:27Z
2020-04-10T08:37:17Z
CONTRIBUTOR
null
- [x] closes #33253 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry I added "not self._mask.any()" to check if there is no missing value for both .any() and .all() when skipna is False. It looks fine for the example you provided. ![any_all](https://user-images.githubusercontent.com/43714531/78453697-65cc1400-7661-11ea-9666-2fef60f2e81e.png)
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DOC: Mention Index.equals takes into account order of arguments
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3
2020-04-04T15:21:05Z
2020-04-06T08:29:11Z
2020-04-06T08:29:11Z
NONE
null
- [x] I have checked that this issue has not already been reported. - [x] I have confirmed this bug exists on the latest version of pandas. - [x] (optional) I have confirmed this bug exists on the master branch of pandas. #### Code Sample, a copy-pastable example ```python import pandas as pd pd.Index(['10607', '6574', '6621', '99917']).equals(pd.Index(['99917', '10607', '6574', '6621'])) # False set(['10607', '6574', '6621', '99917']) == set(['99917', '10607', '6574', '6621']) # True ``` #### Problem description I have seen #13708, but according to documentation: > Determine if two Index objects contain the same elements. Should it return `True` instead? Reading how the function is implemented: https://github.com/pandas-dev/pandas/blob/3adf3340453d6704d4a2cb47058214cc697a7d29/pandas/core/indexes/base.py#L4072-L4074 It relies on: https://github.com/pandas-dev/pandas/blob/3adf3340453d6704d4a2cb47058214cc697a7d29/pandas/core/dtypes/missing.py#L421-L431 Which is indeed strict and do take order into account. #### Expected Output As I understand the equality of index is about having the same elements. It is not required the elements having the same order. I have the feeling that once pandas worked this way (maybe before `v0.23`). What is the intended way ? Maybe the documentation should be a bit more explicit about this comparison. If you indicate me where I can update the doc, I will be glad to edit it. #### Output of ``pd.show_versions()`` <details> commit : None python : 3.6.9.final.0 python-bits : 64 OS : Linux OS-release : 4.15.0-91-generic machine : x86_64 processor : x86_64 byteorder : little LC_ALL : None LANG : C.UTF-8 LOCALE : en_US.UTF-8 pandas : 1.0.3 numpy : 1.18.2 pytz : 2019.3 dateutil : 2.8.1 pip : 9.0.1 setuptools : 46.1.3 Cython : 0.29.14 pytest : 5.3.2 hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : 1.1.8 lxml.etree : 4.3.4 html5lib : 0.999999999 pymysql : None psycopg2 : 2.8.4 (dt dec pq3 ext lo64) jinja2 : 2.11.1 IPython : 7.13.0 pandas_datareader: None bs4 : 4.7.1 bottleneck : None fastparquet : None gcsfs : None lxml.etree : 4.3.4 matplotlib : 3.2.1 numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : 0.13.0 pytables : None pytest : 5.3.2 pyxlsb : None s3fs : None scipy : 1.4.1 sqlalchemy : 1.3.15 tables : None tabulate : 0.8.3 xarray : None xlrd : 1.2.0 xlwt : 1.3.0 xlsxwriter : 1.1.8 numba : None </details>
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593,942,177
MDExOlB1bGxSZXF1ZXN0Mzk4NjM0MjM0
33,286
CLN: Add/refine type hints to some functions in core.dtypes.cast
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2
2020-04-04T16:18:53Z
2020-07-11T16:02:14Z
2020-04-05T19:39:56Z
MEMBER
null
- [ ] closes #xxxx - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry Some cleanup resulting from PR #32894. In order to get SeriesGroupBy._transform_fast to realize self.obj is a Series, it seemed I needed to add a generic type to GroupBy and _GroupBy. I don't know if there is a better way to do this. Here, one cannot use FrameOrSeries as a Series may return a DataFrame and vice-versa, so I added _GroupByT.
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593,961,203
MDU6SXNzdWU1OTM5NjEyMDM=
33,287
PERF: hashtable for 16, 32, 128 bit dtypes
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9
2020-04-04T17:33:08Z
2021-01-02T19:31:47Z
2021-01-02T19:31:46Z
MEMBER
null
@jorisvandenbossche has pointed out in a couple of threads recently that the hashtables we use only support 64 bit float/uint/int dtypes. As a result, whenever we need to factorize a smaller dtype, we have to copy+upcast. khash.pxd looks like it has int32 functions; might there be uint32 or float32 variants available somewhere in the C code? If not, what would it take to implement them? cc @WillAyd @chris-b1
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MDU6SXNzdWU1OTM5ODgzNjY=
33,288
REGR: Replacing a category with itself replaces it with np.nan
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2
2020-04-04T18:28:55Z
2020-05-26T09:35:26Z
2020-04-06T22:01:57Z
NONE
null
- [x] I have checked that this issue has not already been reported. - [x] I have confirmed this bug exists on the latest version of pandas. - [x] I have confirmed this bug exists on the master branch of pandas. #### Code Sample, a copy-pastable example ```python import pandas as pd pd.Series(["a", "b"]).astype("category").replace("a", "a") # 0 NaN # 1 b # dtype: category # Categories (1, object): [b] ``` Operating on the categorical array directly, i.e. `pd.Categorical(["a", "b"]).replace("a", "a")` yields the same result. #### Problem description Replacing a category with itself replaces it with `np.nan`. This problem was introduced with 1.0.0. #### Expected Output I would have expected the behavior from 0.25.3: ```python pd.Series(["a", "b"]).astype("category").replace("a", "a") # 0 a # 1 b # dtype: category # Categories (2, object): [a, b] ``` Note that if we work with lists, we get ```python pd.Series(["a", "b"]).astype("category").replace(["a"], ["a"]) # dtype: category # 0 a # 1 b # type: object ``` which is also not what I would expect, because we're now losing the dtype. This behavior has been described elsewhere (e.g. https://github.com/pandas-dev/pandas/pull/31734#issuecomment-583130043) and it's consistent with 0.25.3. #### Output of ``pd.show_versions()`` <details> ``` INSTALLED VERSIONS ------------------ commit : None python : 3.8.2.final.0 python-bits : 64 OS : Linux OS-release : 4.4.0-176-generic machine : x86_64 processor : x86_64 byteorder : little LC_ALL : None LANG : en_US.UTF-8 LOCALE : en_US.UTF-8 pandas : 1.0.3 numpy : 1.18.1 pytz : 2019.3 dateutil : 2.8.1 pip : 20.0.2 setuptools : 46.1.3.post20200325 Cython : None pytest : None hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : None IPython : 7.13.0 pandas_datareader: None bs4 : None bottleneck : None fastparquet : None gcsfs : None lxml.etree : None matplotlib : None numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pytables : None pytest : None pyxlsb : None s3fs : None scipy : None sqlalchemy : None tables : None tabulate : None xarray : None xlrd : None xlwt : None xlsxwriter : None numba : None ``` </details>
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DOC: Improved doc for `Index.equals`
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2020-04-06T08:29:43Z
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2020-04-04T19:23:36Z
2020-04-06T22:33:48Z
2020-04-06T22:17:19Z
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Broken off from #32997. The fixture this implements in the datetimelike tests can be used in a follow-up to clean up those tests a bit
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- [ ] closes #xxxx - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry Noticed a now-duplicate test that this gets rid of
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33,298
BUG: Replace methods fills value from previous row when replacing with None
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2020-04-05T04:04:17Z
2020-04-05T12:44:34Z
2020-04-05T12:44:13Z
NONE
null
- [x] I have checked that this issue has not already been reported. - [x] I have confirmed this bug exists on the latest version of pandas. - [ ] (optional) I have confirmed this bug exists on the master branch of pandas. --- #### Code Sample, a copy-pastable example ```python import numpy as np import pandas as pd df = pd.DataFrame({'x': [10, 20, np.nan], 'y': [30, 40, 50]}) print(df.replace(np.NaN, None)) # x y # 0 10.0 30 # 1 20.0 40 # 2 20.0 50 ``` #### Problem description When replacing NaN with None using replace method, value, NaN value is replaced with value from previous row instead of None. #### Expected Output ``` # x y # 0 10.0 30 # 1 20.0 40 # 2 None 50 ``` #### Output of ``pd.show_versions()`` <details> ``` INSTALLED VERSIONS ------------------ commit : None python : 3.7.4.final.0 python-bits : 64 OS : Windows OS-release : 10 machine : AMD64 processor : Intel64 Family 6 Model 158 Stepping 13, GenuineIntel byteorder : little LC_ALL : None LANG : en_US.UTF-8 LOCALE : None.None pandas : 1.0.0rc0 numpy : 1.17.2 pytz : 2019.2 dateutil : 2.8.0 pip : 19.3.1 setuptools : 40.8.0 Cython : None pytest : None hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : None IPython : None pandas_datareader: None bs4 : None bottleneck : None fastparquet : None gcsfs : None lxml.etree : None matplotlib : None numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pytables : None pytest : None s3fs : None scipy : None sqlalchemy : None tables : None tabulate : 0.8.6 xarray : None xlrd : None xlwt : None xlsxwriter : None numba : None ``` </details>
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MDExOlB1bGxSZXF1ZXN0Mzk4OTEzNjk2
33,299
BUG: DataFrame._item_cache not cleared on on .copy()
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2
2020-04-05T05:26:53Z
2020-04-07T19:52:35Z
2020-04-06T14:33:38Z
CONTRIBUTOR
null
- [x] closes #31784 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry
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RLS: 1.0.4
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53
2020-04-05T10:44:42Z
2020-06-04T20:56:03Z
2020-06-04T20:55:46Z
MEMBER
null
we have several regressions reported since 1.0.3 (not due to 1.0.3, since 0.25.3) and a couple that had not been fixed. https://github.com/pandas-dev/pandas/issues?page=1&q=is%3Aopen+is%3Aissue+label%3ARegression Is there any that warrant a 1.0.4 release? @pandas-dev/pandas-core
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DOC/CLN: remove versionadded/changed:: 0.21
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2020-04-05T13:26:44Z
2020-04-13T14:41:51Z
2020-04-05T19:21:30Z
MEMBER
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xref #29126
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API/DEPR: DataFrame/Series.replace is too complex.
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2020-04-05T13:52:46Z
2021-07-31T02:11:20Z
null
MEMBER
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in https://github.com/pandas-dev/pandas/issues/17673#issue-260396559 @jorisvandenbossche wrote >Underlying reason is that this function of course can do way too many things at the same time (or the same things in too many different ways) ... (orthogonal to this, we could maybe also think if certain functionality could be moved into its own function). opened this issue to discuss.
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33,303
BUG: wrong df.groupby().groups when grouping with [Grouper(freq=), ...] (GH33132)
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2020-04-05T16:23:21Z
2020-09-13T00:14:06Z
2020-09-13T00:14:06Z
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- [ ] closes #33132 - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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REGR: Fix construction of PeriodIndex from strings
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2020-04-10T17:36:30Z
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- [ ] closes #26109 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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BUG:I am using Latest python 3.8 ,the pip install pandas is working and is successful but showing an when importing it is showing an error, need help
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2020-04-05T17:02:24Z
2020-04-05T17:39:47Z
2020-04-05T17:38:41Z
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- [ ] I have checked that this issue has not already been reported. - [ ] I have confirmed this bug exists on the latest version of pandas. - [ ] (optional) I have confirmed this bug exists on the master branch of pandas. --- **Note**: Please read [this guide](https://matthewrocklin.com/blog/work/2018/02/28/minimal-bug-reports) detailing how to provide the necessary information for us to reproduce your bug. #### Code Sample, a copy-pastable example ```python # Your code here ``` #### Problem description [this should explain **why** the current behaviour is a problem and why the expected output is a better solution] #### Expected Output #### Output of ``pd.show_versions()`` <details> [paste the output of ``pd.show_versions()`` here leaving a blank line after the details tag] </details>
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ENH: Named aggregations with multiple columns
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2020-04-05T19:28:13Z
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- [ ] closes #29268 - [x] tests added - [ ] tests passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry
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TST: misplaced reduction/indexing tests
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DOC: include Offset.__call__ to autosummary to fix sphinx warning
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CLN: remove fill_tuple kludge
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Update citation webpage
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18
2020-04-06T01:45:50Z
2020-05-07T10:10:11Z
2020-04-10T17:43:37Z
CONTRIBUTOR
null
Follow-up of #32388, addressing #24036 I will leave it to the pandas team to decide whether to put in there a BibTeX entry with the concept DOI or a specific version, some options of dealing with this are described [in this comment](https://github.com/sherpa/sherpa/pull/634#issuecomment-553668211). Note how [this comment thread](https://github.com/pandas-dev/pandas/pull/32388#discussion_r386392799) on the previous PR asked to replace the author list by "The pandas development team". However, if users go to Zenodo to get the correct BibTeX entry of the version they're actually using, their citation will contain the full author list provided in Zenodo.
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DOC: do not include type hints in signature in html docs
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7
2020-04-06T08:11:52Z
2020-04-06T20:55:44Z
2020-04-06T20:52:53Z
MEMBER
null
See https://github.com/pandas-dev/pandas/issues/33025. Removing the type hints in the online docs until we have a better solution to improve readability.
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33,313
BUG: Bad error message on read_parquet() when wrong version of pyarrow is installed
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4
2020-04-06T09:53:19Z
2020-04-08T16:45:46Z
2020-04-08T16:45:46Z
CONTRIBUTOR
null
- [x] I have checked that this issue has not already been reported. - [x] I have confirmed this bug exists on the latest version of pandas. - [x] (optional) I have confirmed this bug exists on the master branch of pandas. --- #### Code Sample, a copy-pastable example With `pyarrow<0.13` installed, ```python pd.read_parquet('some_file.parquet') ``` #### Problem description The error message says that `pyarrow` should be installed, even though `pyarrow` is already installed – which makes the error difficult to diagnose and fix, when in fact, the problem is an incompatible _version_ of pyarrow. ``` File "[...]\lib\site-packages\pandas\io\parquet.py", line 33, in get_engine "Unable to find a usable engine; " ImportError: Unable to find a usable engine; tried using: 'pyarrow', 'fastparquet'. pyarrow or fastparquet is required for parquet support ``` #### Expected Output The message should state the real cause of the error, namely an incompatible version of pyarrow. Like: ``` File "[...]\lib\site-packages\pandas\io\parquet.py", line 40, in get_engine return PyArrowImpl() File "[...]\lib\site-packages\pandas\io\parquet.py", line 75, in __init__ "pyarrow", extra="pyarrow is required for parquet support." File "[...]\lib\site-packages\pandas\compat\_optional.py", line 109, in import_optional_dependency raise ImportError(msg) ImportError: Pandas requires version '0.13.0' or newer of 'pyarrow' (version '0.11.1' currently installed). ``` This helpful error message does in fact get generated at a lower level in `pandas.compat._optional.import_optional_dependency()`, but then gets swallowed when its client `pandas.io.parquet.get_engine(engine="auto")` raises a new `ImportError` from scratch. #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.7.7.final.0 python-bits : 64 OS : Windows OS-release : 10 machine : AMD64 processor : Intel64 Family 6 Model 61 Stepping 4, GenuineIntel byteorder : little LC_ALL : None LANG : en_US.UTF-8 LOCALE : None.None pandas : 1.0.3 numpy : 1.18.1 pytz : 2019.3 dateutil : 2.8.1 pip : 20.0.2 setuptools : 46.1.3.post20200330 Cython : None pytest : None hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : None IPython : None pandas_datareader: None bs4 : None bottleneck : None fastparquet : None gcsfs : None lxml.etree : None matplotlib : None numexpr : None odfpy : None openpyxl : 3.0.3 pandas_gbq : None pyarrow : 0.11.1 pytables : None pytest : None pyxlsb : None s3fs : None scipy : 1.4.1 sqlalchemy : None tables : None tabulate : None xarray : None xlrd : None xlwt : None xlsxwriter : None numba : None </details>
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BUG: clang-9: error: -Wl,-export_dynamic: 'linker' input unused (OSX)
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3
2020-04-06T10:11:20Z
2020-11-27T20:03:58Z
2020-11-27T20:03:58Z
CONTRIBUTOR
null
- [x] I have checked that this issue has not already been reported. - [ ] I have confirmed this bug exists on the latest version of pandas. - [x] (optional) I have confirmed this bug exists on the master branch of pandas. --- ### conda environment ``` conda create -n pandas-compile-test compilers numpy cython ``` <details> ``` binutils-meta conda-forge/osx-64::binutils-meta-1.0.4-0 c-compiler conda-forge/osx-64::c-compiler-1.0.4-h1239861_0 ca-certificates conda-forge/osx-64::ca-certificates-2020.4.5.1-hecc5488_0 cctools conda-forge/osx-64::cctools-927.0.2-h5ba7a2e_4 certifi conda-forge/osx-64::certifi-2020.4.5.1-py38h32f6830_0 clang conda-forge/osx-64::clang-9.0.1-default_hf57f61e_0 clang_osx-64 conda-forge/osx-64::clang_osx-64-9.0.1-h05bbb7f_0 clangxx conda-forge/osx-64::clangxx-9.0.1-default_hf57f61e_0 clangxx_osx-64 conda-forge/osx-64::clangxx_osx-64-9.0.1-h05bbb7f_0 compiler-rt conda-forge/osx-64::compiler-rt-9.0.1-h6a512c6_3 compiler-rt_osx-64 conda-forge/noarch::compiler-rt_osx-64-9.0.1-h99342c6_3 compilers conda-forge/osx-64::compilers-1.0.4-0 cxx-compiler conda-forge/osx-64::cxx-compiler-1.0.4-h707564b_0 cython conda-forge/osx-64::cython-0.29.16-py38hc84c608_0 fortran-compiler conda-forge/osx-64::fortran-compiler-1.0.4-he991be0_0 gfortran_impl_osx~ conda-forge/osx-64::gfortran_impl_osx-64-7.3.0-hf4212f2_2 gfortran_osx-64 conda-forge/osx-64::gfortran_osx-64-7.3.0-h22b1bf0_9 gmp conda-forge/osx-64::gmp-6.2.0-h4a8c4bd_2 isl conda-forge/osx-64::isl-0.19-0 ld64 conda-forge/osx-64::ld64-450.3-h3c32e8a_4 libblas conda-forge/osx-64::libblas-3.8.0-16_openblas libcblas conda-forge/osx-64::libcblas-3.8.0-16_openblas libcxx conda-forge/osx-64::libcxx-9.0.1-1 libffi conda-forge/osx-64::libffi-3.2.1-h4a8c4bd_1007 libgfortran conda-forge/osx-64::libgfortran-4.0.0-2 libiconv conda-forge/osx-64::libiconv-1.15-h0b31af3_1006 liblapack conda-forge/osx-64::liblapack-3.8.0-16_openblas libllvm9 conda-forge/osx-64::libllvm9-9.0.1-ha1b3eb9_0 libopenblas conda-forge/osx-64::libopenblas-0.3.9-h3d69b6c_0 llvm-openmp conda-forge/osx-64::llvm-openmp-9.0.1-h28b9765_2 mpc conda-forge/osx-64::mpc-1.1.0-h4160ff4_1006 mpfr conda-forge/osx-64::mpfr-4.0.2-h44b798e_0 ncurses conda-forge/osx-64::ncurses-6.1-h0a44026_1002 numpy conda-forge/osx-64::numpy-1.18.1-py38h1f821a2_1 openssl conda-forge/osx-64::openssl-1.1.1f-h0b31af3_0 pip conda-forge/noarch::pip-20.0.2-py_2 python conda-forge/osx-64::python-3.8.2-hd5f0129_5_cpython python_abi conda-forge/osx-64::python_abi-3.8-1_cp38 readline conda-forge/osx-64::readline-8.0-hcfe32e1_0 setuptools conda-forge/osx-64::setuptools-46.1.3-py38h32f6830_0 sqlite conda-forge/osx-64::sqlite-3.30.1-h93121df_0 tapi conda-forge/osx-64::tapi-1000.10.8-ha1b3eb9_4 tk conda-forge/osx-64::tk-8.6.10-hbbe82c9_0 wheel conda-forge/noarch::wheel-0.34.2-py_1 xz conda-forge/osx-64::xz-5.2.4-h0b31af3_1002 zlib conda-forge/osx-64::zlib-1.2.11-h0b31af3_1006 ``` </details> Error message: ``` clang-9: error: -Wl,-export_dynamic: 'linker' input unused [-Werror,-Wunused-command-line-argument] ``` Output of `pip install -e ~/Development/pandas --no-deps --no-use-pep517 -vvv`: <details> ``` Non-user install because site-packages writeableCreated temporary directory: /private/var/folders/3r/k0d_q3hs2mb2_jxfh_9hjyqr0000gn/T/pip-ephem-wheel-cache-ehxkyhsg Created temporary directory: /private/var/folders/3r/k0d_q3hs2mb2_jxfh_9hjyqr0000gn/T/pip-req-tracker-waeimcjv Initialized build tracking at /private/var/folders/3r/k0d_q3hs2mb2_jxfh_9hjyqr0000gn/T/pip-req-tracker-waeimcjv Created build tracker: /private/var/folders/3r/k0d_q3hs2mb2_jxfh_9hjyqr0000gn/T/pip-req-tracker-waeimcjv Entered build tracker: /private/var/folders/3r/k0d_q3hs2mb2_jxfh_9hjyqr0000gn/T/pip-req-tracker-waeimcjv Created temporary directory: /private/var/folders/3r/k0d_q3hs2mb2_jxfh_9hjyqr0000gn/T/pip-install-5lvoa7_h Obtaining file:///Users/uwe/Development/pandas Added file:///Users/uwe/Development/pandas to build tracker '/private/var/folders/3r/k0d_q3hs2mb2_jxfh_9hjyqr0000gn/T/pip-req-tracker-waeimcjv' Running setup.py (path:/Users/uwe/Development/pandas/setup.py) egg_info for package from file:///Users/uwe/Development/pandas Running command python setup.py egg_info Compiling pandas/_libs/hashing.pyx because it depends on /Users/uwe/miniconda3/envs/pandas-compile-test/lib/python3.8/site-packages/Cython/Includes/numpy/__init__.pxd. Compiling pandas/_libs/reshape.pyx because it depends on /Users/uwe/miniconda3/envs/pandas-compile-test/lib/python3.8/site-packages/Cython/Includes/numpy/__init__.pxd. Compiling pandas/_libs/window/indexers.pyx because it depends on /Users/uwe/miniconda3/envs/pandas-compile-test/lib/python3.8/site-packages/Cython/Includes/numpy/__init__.pxd. [1/3] Cythonizing pandas/_libs/hashing.pyx [2/3] Cythonizing pandas/_libs/reshape.pyx [3/3] Cythonizing pandas/_libs/window/indexers.pyx running egg_info writing pandas.egg-info/PKG-INFO writing dependency_links to pandas.egg-info/dependency_links.txt writing entry points to pandas.egg-info/entry_points.txt writing requirements to pandas.egg-info/requires.txt writing top-level names to pandas.egg-info/top_level.txt reading manifest file 'pandas.egg-info/SOURCES.txt' reading manifest template 'MANIFEST.in' no previously-included directories found matching 'doc/build' warning: no previously-included files matching '*.pyd' found anywhere in distribution warning: no previously-included files matching '*~' found anywhere in distribution warning: no previously-included files matching '.DS_Store' found anywhere in distribution warning: no previously-included files matching '#*' found anywhere in distribution writing manifest file 'pandas.egg-info/SOURCES.txt' Source in /Users/uwe/Development/pandas has version 1.1.0.dev0+1122.g01f73100d.dirty, which satisfies requirement pandas==1.1.0.dev0+1122.g01f73100d.dirty from file:///Users/uwe/Development/pandas Removed pandas==1.1.0.dev0+1122.g01f73100d.dirty from file:///Users/uwe/Development/pandas from build tracker '/private/var/folders/3r/k0d_q3hs2mb2_jxfh_9hjyqr0000gn/T/pip-req-tracker-waeimcjv' Installing collected packages: pandas Running setup.py develop for pandas Running command /Users/uwe/miniconda3/envs/pandas-compile-test/bin/python3.8 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/Users/uwe/Development/pandas/setup.py'"'"'; __file__='"'"'/Users/uwe/Development/pandas/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' develop --no-deps running develop running egg_info writing pandas.egg-info/PKG-INFO writing dependency_links to pandas.egg-info/dependency_links.txt writing entry points to pandas.egg-info/entry_points.txt writing requirements to pandas.egg-info/requires.txt writing top-level names to pandas.egg-info/top_level.txt reading manifest file 'pandas.egg-info/SOURCES.txt' reading manifest template 'MANIFEST.in' no previously-included directories found matching 'doc/build' warning: no previously-included files matching '*.pyd' found anywhere in distribution warning: no previously-included files matching '*~' found anywhere in distribution warning: no previously-included files matching '.DS_Store' found anywhere in distribution warning: no previously-included files matching '#*' found anywhere in distribution writing manifest file 'pandas.egg-info/SOURCES.txt' running build_ext building 'pandas._libs.algos' extension x86_64-apple-darwin13.4.0-clang -fno-strict-aliasing -Wsign-compare -Wunreachable-code -DNDEBUG -fwrapv -O3 -Wall -Wstrict-prototypes -march=core2 -mtune=haswell -mssse3 -ftree-vectorize -fPIC -fPIE -fstack-protector-strong -O3 -pipe -fdebug-prefix-map=${SRC_DIR}=/usr/local/src/conda/${PKG_NAME}-${PKG_VERSION} -fdebug-prefix-map=/Users/uwe/miniconda3/envs/pandas-compile-test=/usr/local/src/conda-prefix -flto -Wl,-export_dynamic -march=core2 -mtune=haswell -mssse3 -ftree-vectorize -fPIC -fPIE -fstack-protector-strong -O3 -march=core2 -mtune=haswell -mssse3 -ftree-vectorize -fPIC -fPIE -fstack-protector-strong -O2 -pipe -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include -D_FORTIFY_SOURCE=2 -mmacosx-version-min=10.9 -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/uwe/miniconda3/envs/pandas-compile-test/lib/python3.8/site-packages/numpy/core/include -I/Users/uwe/miniconda3/envs/pandas-compile-test/include/python3.8 -c pandas/_libs/algos.c -o build/temp.macosx-10.9-x86_64-3.8/pandas/_libs/algos.o -Werror clang-9: error: -Wl,-export_dynamic: 'linker' input unused [-Werror,-Wunused-command-line-argument] error: command 'x86_64-apple-darwin13.4.0-clang' failed with exit status 1 Cleaning up... Removed build tracker: '/private/var/folders/3r/k0d_q3hs2mb2_jxfh_9hjyqr0000gn/T/pip-req-tracker-waeimcjv' ERROR: Command errored out with exit status 1: /Users/uwe/miniconda3/envs/pandas-compile-test/bin/python3.8 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/Users/uwe/Development/pandas/setup.py'"'"'; __file__='"'"'/Users/uwe/Development/pandas/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' develop --no-deps Check the logs for full command output. ``` </details> `export | grep FLAGS`: ``` CFLAGS='-march=core2 -mtune=haswell -mssse3 -ftree-vectorize -fPIC -fPIE -fstack-protector-strong -O2 -pipe -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include' CONDA_BACKUP_LDFLAGS=' -Wl,-rpath,/Users/uwe/miniconda3/envs/pandas-compile-test/lib -L/Users/uwe/miniconda3/envs/pandas-compile-test/lib' CPPFLAGS='-D_FORTIFY_SOURCE=2 -mmacosx-version-min=10.9 -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include' CXXFLAGS='-march=core2 -mtune=haswell -mssse3 -ftree-vectorize -fPIC -fPIE -fstack-protector-strong -O2 -pipe -stdlib=libc++ -fvisibility-inlines-hidden -std=c++14 -fmessage-length=0 -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include' DEBUG_CFLAGS='-march=core2 -mtune=haswell -mssse3 -ftree-vectorize -fPIC -fPIE -fstack-protector-strong -O2 -pipe -Og -g -Wall -Wextra -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include' DEBUG_CXXFLAGS='-march=core2 -mtune=haswell -mssse3 -ftree-vectorize -fPIC -fPIE -fstack-protector-strong -O2 -pipe -stdlib=libc++ -fvisibility-inlines-hidden -std=c++14 -fmessage-length=0 -Og -g -Wall -Wextra -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include' DEBUG_FFLAGS='-march=nocona -mtune=core2 -ftree-vectorize -fPIC -fstack-protector -O2 -pipe -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include -march=nocona -mtune=core2 -ftree-vectorize -fPIC -fstack-protector -O2 -pipe -Og -g -Wall -Wextra -fcheck=all -fbacktrace -fimplicit-none -fvar-tracking-assignments' DEBUG_FORTRANFLAGS='-march=nocona -mtune=core2 -ftree-vectorize -fPIC -fstack-protector -O2 -pipe -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include -march=nocona -mtune=core2 -ftree-vectorize -fPIC -fstack-protector -O2 -pipe -Og -g -Wall -Wextra -fcheck=all -fbacktrace -fimplicit-none -fvar-tracking-assignments' FFLAGS='-march=nocona -mtune=core2 -ftree-vectorize -fPIC -fstack-protector -O2 -pipe -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include' FORTRANFLAGS='-march=nocona -mtune=core2 -ftree-vectorize -fPIC -fstack-protector -O2 -pipe -isystem /Users/uwe/miniconda3/envs/pandas-compile-test/include' LDFLAGS=' -Wl,-rpath,/Users/uwe/miniconda3/envs/pandas-compile-test/lib -L/Users/uwe/miniconda3/envs/pandas-compile-test/lib' LDFLAGS_LD='-pie -headerpad_max_install_names -dead_strip_dylibs -rpath /Users/uwe/miniconda3/envs/pandas-compile-test/lib -L/Users/uwe/miniconda3/envs/pandas-compile-test/lib' XPC_FLAGS=0x0 ``` Seems like this is not the first issue in response to https://github.com/pandas-dev/pandas/pull/32163, there is also e.g. https://github.com/pandas-dev/pandas/issues/33224
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594,985,720
MDU6SXNzdWU1OTQ5ODU3MjA=
33,315
Remove `-Werror` from setup.py
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26
2020-04-06T10:15:10Z
2020-11-27T20:03:58Z
2020-11-27T20:03:58Z
CONTRIBUTOR
null
It seems nice to have `-Werror` in CI but as a conda-forge maintainer I quite often have to write patches to remove `-Werror` from releases as the system distributions build packages on are not identical to the ones CI of upstream runs on. There is a large variety of compiler warnings and some may only show up when other C-defines are set. Also many new warning appear when you build with a newer compiler or different versions of the dependencies used. My suggestion would be: * Remove `-Werror` from `setup.py`. * Add `-Werror` to `CFLAGS` on CI to have the same result for pandas-dev as it is currently. Original PR: https://github.com/pandas-dev/pandas/pull/32163 Related issues: https://github.com/pandas-dev/pandas/issues/33314, https://github.com/pandas-dev/pandas/issues/33224
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33,316
CLN: Added static types for `pandas/_libs/reduction.pyx`
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0
2020-04-06T10:26:24Z
2020-04-06T15:07:07Z
2020-04-06T14:48:12Z
MEMBER
null
- [ ] closes #xxxx - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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