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https://api.github.com/repos/pandas-dev/pandas/issues/30514
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542,951,944
MDExOlB1bGxSZXF1ZXN0MzU3Mjk2NzEz
30,514
DEPR: Remove Series.compress
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1
2019-12-27T18:17:32Z
2019-12-27T19:28:32Z
2019-12-27T19:28:19Z
MEMBER
null
- [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry As noted in https://github.com/pandas-dev/pandas/issues/6581, sounds like we are okay breaking compatibility with `np.compress`
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542,956,628
MDExOlB1bGxSZXF1ZXN0MzU3MzAwNjMz
30,515
BUG: List indexer on PeriodIndex doesn't coerce strings
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10
2019-12-27T18:38:13Z
2020-05-03T16:49:49Z
2020-05-03T16:09:15Z
CONTRIBUTOR
null
- [x] closes #11278 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry Description: In single object indexer case, datetime string converted to datetime-like object. Because indexing use ".xs" which is ".get_loc" that has type casting labels code. But in list indexer, there is no type check and casting code. So i add them. this bug happen not only series but also dataframe And "datetimeindex" as well as "periodIndex"
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542,965,449
MDExOlB1bGxSZXF1ZXN0MzU3MzA3ODY3
30,516
DEPR: tz-aware Series/DatetimIndex.__array__ returns an object array of Timestamps
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8
2019-12-27T19:17:05Z
2020-01-03T05:23:39Z
2020-01-03T01:17:46Z
MEMBER
null
- [x] closes #24716 - [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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MDU6SXNzdWU1NDI5ODEyNTY=
30,517
DataFrame.set_index() may not preserve dtype
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13
2019-12-27T20:27:15Z
2021-08-29T23:11:51Z
null
CONTRIBUTOR
null
xref #19602 #### Code Sample, a copy-pastable example if possible ```python In [1]: import pandas as pd In [2]: pd.__version__ Out[2]: '0.25.3' In [3]: df = pd.DataFrame({'mixed' : [1, 2, 'abc', 'def'], 'ints': [100, 200, 3 ...: 00, 400]}) In [4]: df Out[4]: mixed ints 0 1 100 1 2 200 2 abc 300 3 def 400 In [5]: df.dtypes Out[5]: mixed object ints int64 dtype: object In [6]: df.query('ints < 300').set_index('mixed').index Out[6]: Int64Index([1, 2], dtype='int64', name='mixed') In [7]: df.set_index('mixed').query('ints < 300').index Out[7]: Index([1, 2], dtype='object', name='mixed') ``` #### Problem description In the above, I start with a `DataFrame` with a column `mixed` that has both integer and string values. In statement [6], I do a query on a different column and then set the index to be the column `mixed`. The resulting index now has an `int64` dtype as opposed to having the dtype preserved from the original column. But in statement [7], I first set the index, and then do the query, and now the index has the `object` dtype. This becomes an issue if one does some computation on the queried DataFrame and then create the index `mixed`, and then you want to merge it back to the original `DataFrame`. Now the original one will have `mixed` as dtype `'O'` and the new one has `mixed` as dtype '`int`' #### Expected Output From statement [6], I would have expected: ``` Index([1, 2], dtype='object', name='mixed') ``` #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.7.3.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 : None LOCALE : None.None pandas : 0.25.3 numpy : 1.17.4 pytz : 2019.3 dateutil : 2.8.1 pip : 19.3.1 setuptools : 42.0.2.post20191203 Cython : 0.29.14 pytest : 5.3.2 hypothesis : 4.54.2 sphinx : 2.3.0 blosc : None feather : None xlsxwriter : 1.2.6 lxml.etree : 4.4.2 html5lib : 1.0.1 pymysql : None psycopg2 : None jinja2 : 2.10.3 IPython : 7.10.2 pandas_datareader: None bs4 : 4.8.1 bottleneck : 1.3.1 fastparquet : None gcsfs : None lxml.etree : 4.4.2 matplotlib : 3.1.1 numexpr : 2.7.0 odfpy : None openpyxl : 3.0.2 pandas_gbq : None pyarrow : None pytables : None s3fs : None scipy : 1.3.2 sqlalchemy : 1.3.11 tables : 3.6.1 xarray : None xlrd : 1.2.0 xlwt : 1.3.0 xlsxwriter : 1.2.6 </details>
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542,996,532
MDU6SXNzdWU1NDI5OTY1MzI=
30,518
UTC offset defined through to_datetime function appears reversed
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2
2019-12-27T21:31:39Z
2019-12-28T07:00:09Z
2019-12-28T04:39:41Z
NONE
null
Hello, Sorry to intrude, I think there might be a trouble with parsing strings containing timezone data as 'GMT+1'. Basically, I have a list of timestamps stored as strings: ''' 0 Sat Mar 30 2019 21:00:00 GMT+0100 1 Sat Mar 30 2019 22:00:00 GMT+0100 2 Sat Mar 30 2019 23:00:00 GMT+0100 3 Sun Mar 31 2019 00:00:00 GMT+0100 ''' I add them in a dataframe as datetime object. ''' GC['date'] = pd.to_datetime(my_timestamps) ''' As a result, I get: ''' 0 2019-03-30 21:00:00-01:00 1 2019-03-30 22:00:00-01:00 2 2019-03-30 23:00:00-01:00 ''' As far as I googled the topic, the offset should not be reversed. It should stay +1. See for instance this page discussing utcoffset and giving an example with Singapore timezone, that produces following output: https://pythontic.com/datetime/datetime/utcoffset ''' Singapore Time instance:2017-02-14 12:15:01.000099+08:00 UTC Offset for Singapore Time:8:00:00 ''' Offset is +8 hours, and if you check time difference between Singapore and UTC: if Singapore is 5 AM the 2nd of January, UTC is 21 PM the 1str of January: the +8 offset has to be removed to get UTC timezone. So in short, GMT+1 should be translated into +01:00 and not -01:00 as currently the case. Coming back to my own topic, as I have DST in my timestamp list, and that I further use these timestamps as indexes in a panda dataframe, the verify_integrity check fails because it detects timestamps as being the same: ''' 14 Sun Oct 27 2019 02:00:00 GMT+0200 15 Sun Oct 27 2019 02:00:00 GMT+0100 16 Sun Oct 27 2019 03:00:00 GMT+0100 ''' becomes ''' 14 2019-10-27 02:00:00-02:00 15 2019-10-27 02:00:00-01:00 16 2019-10-27 03:00:00-01:00 ''' and if finally converted with ''' GC['date2'] = pd.to_datetime(my_timestamps, utc=True) ''' are written according utc time: ''' 14 2019-10-27 04:00:00+00:00 15 2019-10-27 03:00:00+00:00 16 2019-10-27 04:00:00+00:00 ''' Lines 14 & 16 have the same timestamp, which is not true. Please, is this a bug? Or should I do this in other way? I thank you in advance for your attention. Have a good day, Bests, Pierre
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543,011,969
MDExOlB1bGxSZXF1ZXN0MzU3MzQ2MDI0
30,519
ENH: add support for reading binary Excel files (#15914)
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3
2019-12-27T22:46:28Z
2020-01-03T11:58:55Z
2020-01-03T11:55:36Z
CONTRIBUTOR
null
Hi, this is a quick fix for #15914. After reading the issue I'm not sure if this is meant to be supported though, please let me know! I ran into this issue when trying to pass to `read_excel` a binary file downloaded with `requests` so I think it would make sense to support this natively without the user having to figure out the need to call `io.BytesIO` first. If so, do we need to update other docstrings? Thank you! - [x] closes #15914 - [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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30,520
Performance issue with pandas/core/common.py -> maybe_box_datetimelike
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2019-12-27T23:24:01Z
2020-01-24T04:38:29Z
2020-01-24T04:38:29Z
NONE
null
#### Code Sample, a copy-pastable example if possible ```python # The existing implementation is: def maybe_box_datetimelike(value): # turn a datetime like into a Timestamp/timedelta as needed if isinstance(value, (np.datetime64, datetime)): value = tslibs.Timestamp(value) elif isinstance(value, (np.timedelta64, timedelta)): value = tslibs.Timedelta(value) return value # Proposed improvement: def maybe_box_datetimelike(value): # turn a datetime like into a Timestamp/timedelta as needed if isinstance(value, (np.datetime64, datetime)) and not isinstance(value, tslibs.Timestamp): value = tslibs.Timestamp(value) elif isinstance(value, (np.timedelta64, timedelta)): value = tslibs.Timedelta(value) return value ``` #### Problem description This function determines whether `value` is of type `(np.datetime64, datetime)` and if so, converts it into `tslibs.Timestamp`. However, the class `tslibs.Timestamp` is already a subclass of `datetime`. Therefore, even if the object `value` is already of type `tslibs.Timestamp`, it will be needlessly converted one more time. This issue has large performance, when working with large dataframes, which contain datet time objects. This issue could be fixed by changing the condition `if isinstance(value, (np.datetime64, datetime)):` to: `if isinstance(value, (np.datetime64, datetime)) and not isinstance(value, tslibs.Timestamp):`
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POC/TST: dynamic xfail
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4
2019-12-28T00:07:25Z
2019-12-30T16:25:05Z
2019-12-30T13:18:55Z
MEMBER
null
Motivation: we have a non-trivial number of places where we do `pytest.xfail` within a test (as opposed to via decorator). This has the downside of always being non-strict, so incorrectly-xfailed tests will never show up as xpassing. This uses a workaround to dynamically add the pytest.mark.xfail marker within the test rather than raising pytest.xfail directly. Thoughts?
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30,522
EA: np.array(integer_array) with no NAs
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2
2019-12-28T00:19:15Z
2019-12-28T01:42:57Z
2019-12-28T01:42:57Z
MEMBER
null
ATM we coerce to object, but it would be more performant (and to me at least, more intuitive) to return the underlying ndarray without the mask. I guess this sacrifices consistency.
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2019-12-28T00:53:11Z
2019-12-30T16:26:30Z
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- [x] xref #28150 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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2019-12-28T02:37:32Z
2019-12-30T23:36:05Z
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- [x] closes #23571 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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2019-12-28T04:30:23Z
2019-12-28T18:27:57Z
2019-12-28T16:46:31Z
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Followup to #30151; ignoring `NumbaPerformanceWarning` raised in the test suite when `parallel=True` while the function being tested cannot be parallelized. This behavior is fully intended.
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2019-12-28T06:53:53Z
2020-01-03T11:41:19Z
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CLN: remove kwargs from (DataFrame|Series).fillna
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2
2019-12-28T16:30:52Z
2019-12-30T13:24:08Z
2019-12-30T13:16:01Z
CONTRIBUTOR
null
(DataFrame|Series).fillna have the same parameters as NDFrame.fillna, so the **kwargs is not needed. Also make the return type more specific.
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MDExOlB1bGxSZXF1ZXN0MzU3NTg1OTc4
30,529
REF: collect Index setops tests
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2019-12-28T21:52:27Z
2019-12-30T16:23:22Z
2019-12-30T13:15:30Z
MEMBER
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1
2019-12-28T21:58:10Z
2019-12-30T16:28:30Z
2019-12-30T13:14:22Z
MEMBER
null
try to call construct_result in fewer places, do reindexing in more consistent places, and get fstrings out of the way
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Performance of maybe_box_datetimelike #30520
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4
2019-12-28T22:18:54Z
2020-01-24T04:38:08Z
2020-01-24T04:38:07Z
NONE
null
- [x] closes #30520 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] `maybe_box_datetimelike` avoids unnecessary conversion of `value` to `tslibs.Timestamp` or `tslibs.Timedelta` if `value` is already an instance of `tslibs.Timestamp` or `tslibs.Timedelta`.
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BUG: TypeError in groupby pct_change when fill_method is None
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0
2019-12-29T06:11:14Z
2019-12-31T12:58:24Z
2019-12-31T12:46:48Z
MEMBER
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- [x] xref one of two issues in #30463 - [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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30,533
Inconsistent index in result of groupby apply
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1
2019-12-29T07:15:53Z
2020-01-03T02:12:53Z
2020-01-03T02:12:47Z
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### I'm not really sure if this is an "issue" or the intended behavior, but it just seems unnatural to me to get this result. ```python import pandas as pd df = pd.DataFrame({ 'a': [1, 1, 2, 2], 'b': [3, 3, 4, 5], }) df a b 0 1 3 1 1 3 2 2 4 3 2 5 ``` ```python df1 = df.groupby('a').apply(lambda x: x) df1 a b 0 1 3 1 1 3 2 2 4 3 2 5 ``` ```python df2 = df.groupby('a').apply(lambda x: x.copy()) df2 a b a 1 0 1 3 1 1 3 2 2 2 4 3 2 5 ``` Notice that the two produces different results. A simple code trace tells me this difference comes from `BaseGrouper.apply` which return `mutated=False` for `.apply(lambda x: x)` and `mutate=True` for `.apply(lambda x: x.copy())` This could cause unwanted result when we try to concatenate them. ```python pd.concat([df1, df2]) a b 0 1 3 1 1 3 2 2 4 3 2 5 (1, 0) 1 3 (1, 1) 1 3 (2, 2) 2 4 (2, 3) 2 5 ``` Good thing is, the `apply` method is able to handle this concatenation automatically. ```python def func(data): if 1 in data['a'].values: return data else: return data.copy() df.groupby('a').apply(func) a b 0 1 3 1 1 3 2 2 4 3 2 5 ``` #### Output of ``pd.show_versions()`` <details> [paste the output of ``pd.show_versions()`` here below this line] INSTALLED VERSIONS ------------------ commit : None python : 3.7.3.final.0 python-bits : 64 OS : Windows OS-release : 10 machine : AMD64 processor : Intel64 Family 6 Model 158 Stepping 10, GenuineIntel byteorder : little LC_ALL : None LANG : None LOCALE : None.None pandas : 0.25.3 numpy : 1.17.4 pytz : 2019.3 dateutil : 2.8.1 pip : 19.3.1 setuptools : 42.0.2.post20191203 Cython : 0.29.14 pytest : 5.3.2 hypothesis : 4.44.2 sphinx : 2.3.0 blosc : None feather : None xlsxwriter : 1.2.6 lxml.etree : 4.4.2 html5lib : 1.0.1 pymysql : None psycopg2 : None jinja2 : 2.10.3 IPython : 7.10.2 pandas_datareader: None bs4 : 4.8.1 bottleneck : 1.3.1 fastparquet : None gcsfs : None lxml.etree : 4.4.2 matplotlib : 3.1.1 numexpr : 2.7.0 odfpy : None openpyxl : 3.0.2 pandas_gbq : None pyarrow : None pytables : None s3fs : None scipy : 1.3.2 sqlalchemy : 1.3.11 tables : 3.6.1 xarray : None xlrd : 1.2.0 xlwt : 1.3.0 xlsxwriter : 1.2.6 </details>
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MDExOlB1bGxSZXF1ZXN0MzU3NjMzODg5
30,534
CI: Web_and_Docs failing
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2
2019-12-29T09:50:26Z
2019-12-29T14:27:28Z
2019-12-29T14:17:45Z
MEMBER
null
- [ ] closes #30527 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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MDExOlB1bGxSZXF1ZXN0MzU3NjM0NDk5
30,535
CLN: update check_untyped_defs setup.cfg
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2019-12-29T09:55:48Z
2019-12-30T13:57:25Z
2019-12-30T13:13:23Z
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30,536
Named Aggregation : Can't use multiple lambda on the same column
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2019-12-29T13:40:56Z
2019-12-29T14:20:59Z
2019-12-29T14:20:59Z
NONE
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Note : I read #28467 before posting this #### Code Sample, a copy-pastable example if possible Reproduction : ```python import numpy as np import pandas as pd print(pd.__version__) # 0.25.3 animals = pd.DataFrame({'kind': ['cat', 'dog', 'cat', 'dog'], 'height': [9.1, 6.0, 9.5, 34.0], 'weight': [7.9, 7.5, 9.9, 198.0]}) aggegators = { 'perc80' : ('height', lambda x:np.percentile(x, q=.80)), 'perc90' : ('height', lambda x:np.percentile(x, q=.90)), } animals.groupby('kind').agg(**aggegators) ``` #### Problem description Applying multiple unnamed aggregation functions to the same column throws the exception below, but may not, I think. ` "None of [MultiIndex([('height', '<lambda>'),\n ('height', '<lambda>')],\n )] are in the [columns]" ` #### Expected Output ![image](https://user-images.githubusercontent.com/8083526/71557543-cb4bab80-2a47-11ea-8168-03df36a060d1.png) #### Code without unnamed functions works fine ```python import numpy as np import pandas as pd print(pd.__version__) # 0.25.3 animals = pd.DataFrame({'kind': ['cat', 'dog', 'cat', 'dog'], 'height': [9.1, 6.0, 9.5, 34.0], 'weight': [7.9, 7.5, 9.9, 198.0]}) def perc80(x): return np.percentile(x,q=.80) def perc90(x): return np.percentile(x,q=.90) aggegators2 = { 'perc80' : ('height', perc80), 'perc90' : ('height', perc90), } animals.groupby('kind').agg(**aggegators2) ``` #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.6.9.final.0 python-bits : 64 OS : Linux OS-release : 4.4.0-18362-Microsoft machine : x86_64 processor : x86_64 byteorder : little LC_ALL : None LANG : en_US.UTF-8 LOCALE : en_US.UTF-8 pandas : 0.25.3 numpy : 1.17.4 pytz : 2019.3 dateutil : 2.8.1 pip : 19.3.1 setuptools : 42.0.2.post20191203 Cython : None pytest : None hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : 2.10.3 IPython : 7.10.2 pandas_datareader: None bs4 : None bottleneck : None fastparquet : None gcsfs : None lxml.etree : None matplotlib : 3.1.1 numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pytables : None s3fs : None scipy : None sqlalchemy : None tables : None xarray : None xlrd : None xlwt : None xlsxwriter : None </details>
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543,418,429
MDU6SXNzdWU1NDM0MTg0Mjk=
30,537
Unpin ipython 7.10.1 once ipython 7.11.1 released
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2019-12-29T14:22:59Z
2020-01-04T17:37:46Z
2020-01-04T17:37:46Z
MEMBER
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xref https://github.com/cython/cython/pull/3291#issuecomment-569403562
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MDU6SXNzdWU1NDM0MjkzMjc=
30,538
CI: switch travis default python to 3.7
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0
2019-12-29T14:51:16Z
2019-12-30T13:09:59Z
2019-12-30T13:09:59Z
CONTRIBUTOR
null
we are using 3.5 on all travis co for the base environment: https://github.com/pandas-dev/pandas/blob/master/.travis.yml this doesn’t ultimately matter as we create appropriate conda environments, but should move this forward
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MDU6SXNzdWU1NDM0MzU4NTI=
30,539
DISC: enable disallow_any_generics for mypy in setup.cfg?
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1
2019-12-29T15:08:25Z
2021-03-14T16:59:50Z
null
MEMBER
null
This flag disallows usage of generic types that do not specify explicit type parameters. Moreover, built-in collections (such as list and dict) become disallowed as you should use their aliases from the typing module (such as List[int] and Dict[str, str]). Enabling this would address common pull request review comments. @WillAyd
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CI: Travis default version of python to 3.7
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1
2019-12-29T15:29:42Z
2019-12-31T11:06:07Z
2019-12-30T13:09:59Z
MEMBER
null
- [x] closes #30538 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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30,541
TYP: Implicit generic "Any" for builtins
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5
2019-12-29T16:31:27Z
2020-01-05T19:48:25Z
2019-12-31T14:36:42Z
MEMBER
null
xref #30539
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REF: Refactor window/test_moments.py
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6
2019-12-29T17:51:33Z
2019-12-30T21:01:43Z
2019-12-30T17:52:57Z
MEMBER
null
- [x] xref #30486 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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PERF: Timestamp/Timedelta constructors when passed a Timestamp/Timedelta
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3
2019-12-29T18:45:17Z
2020-01-26T01:03:37Z
2020-01-26T01:03:37Z
MEMBER
null
The `Timestamp` constructor's performance could be improved when an existing `Timestamp` object is passed to it via an `isinstance`-like check: ```python In [1]: import pandas as pd; pd.__version__ Out[1]: '0.26.0.dev0+1469.ge817ffff3' In [2]: ts = pd.Timestamp('2020') In [3]: def timestamp_isinstance_shortcircuit(ts): ...: if isinstance(ts, pd.Timestamp): ...: return ts ...: return pd.Timestamp(ts) ...: In [4]: %timeit pd.Timestamp(ts) 849 ns ± 13.2 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each) In [5]: %timeit timestamp_isinstance_shortcircuit(ts) 121 ns ± 0.279 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each) ``` Some care is needed in the constructor to check if other arguments have been passed, e.g. `tz`, where we wouldn't be able to directly return the `Timestamp` object. Similar story for the `Timedelta` constructor (should be done in a separate PR): ```python In [6]: td = pd.Timedelta('1 day') In [7]: def timedelta_isinstance_shortcircuit(td): ...: if isinstance(td, pd.Timedelta): ...: return td ...: return pd.Timedelta(td) ...: In [8]: %timeit pd.Timedelta(td) 800 ns ± 1.35 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each) In [9]: %timeit timedelta_isinstance_shortcircuit(td) 120 ns ± 0.269 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each) ``` xref #30520
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TST: XFAIL Travis read_html tests
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12
2019-12-29T18:56:08Z
2019-12-31T17:22:13Z
2019-12-31T17:22:06Z
CONTRIBUTOR
null
- [x] xref #29622
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CLN: Remove dead IntervalIndex code
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2019-12-29T19:27:11Z
2019-12-30T21:47:31Z
2019-12-30T13:09:20Z
MEMBER
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xref https://github.com/pandas-dev/pandas/pull/30459#issuecomment-568992710
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2019-12-29T20:11:10Z
2020-01-03T03:05:19Z
2020-01-03T02:13:49Z
CONTRIBUTOR
null
- [x] closes #23566 - [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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30,547
CLN: Update old .format to f-string
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1
2019-12-29T20:47:00Z
2019-12-30T08:10:07Z
2019-12-30T08:09:56Z
CONTRIBUTOR
null
Reviewed and updated to f-string for: pandas/compat/pickle_compat.py pandas/_config/config.py pandas/core/arrays/boolean.py - [x] Contributes to #29547 - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry Marking pickle_compat.py as done but I left the existing `.format` as is, as I believe this is a good use case for `.format`
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543,565,195
MDExOlB1bGxSZXF1ZXN0MzU3ODMyOTUy
30,548
TYP: check_untyped_defs astype_nansafe
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2
2019-12-29T20:55:00Z
2019-12-30T13:54:33Z
2019-12-30T13:08:30Z
MEMBER
null
``` pandas\core\arrays\integer.py:549: error: Argument "copy" to "astype_nansafe" has incompatible type "None"; expected "bool" pandas\core\arrays\boolean.py:527: error: Argument "copy" to "astype_nansafe" has incompatible type "None"; expected "bool" ```
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543,567,202
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30,549
Re-Opening: Pivot Table Margins aren't correctly showing NaN values despite dummy variables
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1
2019-12-29T21:00:26Z
2019-12-30T11:57:46Z
2019-12-30T11:57:45Z
NONE
null
I'm re-opening the issue[ #30351](https://github.com/pandas-dev/pandas/issues/30351), as I don't believe it's a duplicate and it occurs regardless of graphing. Please see this prior issue for all the background. [Tom, I posted some clarifying comments about a week ago on the original issue, but perhaps they got lost in the holiday rush.] I'm relatively new to github, so apologies if I didn't follow the appropriate procedure. Thank you.
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543,580,987
MDExOlB1bGxSZXF1ZXN0MzU3ODQ3NzA5
30,550
TYP: check_untyped_defs pandas.core.computation.align
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0
2019-12-29T21:38:07Z
2019-12-31T14:02:44Z
2019-12-31T12:41:02Z
MEMBER
null
pandas\core\computation\align.py:22: error: Incompatible types in assignment (expression has type "Type[Any]", variable has type "partial[Any]") pandas\core\computation\align.py:26: error: Incompatible types in assignment (expression has type "Tuple[partial[Any], None]", variable has type "Tuple[partial[Any]]") pandas\core\computation\align.py:28: error: Incompatible types in assignment (expression has type "Tuple[partial[Any], Any]", variable has type "Tuple[partial[Any]]")
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30,551
TYP: check_untyped_defs core.computation.eval
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2
2019-12-29T22:08:29Z
2019-12-30T13:55:41Z
2019-12-30T13:28:32Z
MEMBER
null
pandas\core\computation\eval.py:334: error: Cannot instantiate abstract class 'AbstractEngine' with abstract attribute '_evaluate'
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543,610,762
MDU6SXNzdWU1NDM2MTA3NjI=
30,552
PERF: groupby with many empty groups memory blowup
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26
2019-12-29T22:59:51Z
2021-10-14T07:57:50Z
null
MEMBER
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Suppose we have a Categorical with many unused categories: ``` cat = pd.Categorical(range(24), categories=range(10**5)) df = pd.DataFrame({"A": cat, "B": range(24), "C": range(24), "D": 1}) gb = df.groupby(["A", "B", "C"]) >>> gb.size() # memory balloons to 9+ GB before i kill it ``` There are only 24 rows in this DataFrame, so we shouldn't be creating millions of groups. Without the Categorical, but just a large cross-product that implies many empty groups, this works fine: ``` df = pd.DataFrame({n: range(12) for n in range(8)}) gb = df.groupby(list(range(7))) gb.size() # <-- works fine ```
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30,553
TST/BUG: fix incorrectly-passing Exception in test_html
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4
2019-12-30T03:23:00Z
2020-01-18T17:24:11Z
2020-01-18T17:20:04Z
MEMBER
null
A `raise` is indented one indent further than it should be. Fixing this surfaces a failing test that is fixed by decoding bytes before passing it to bs4.
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30,554
TST: Regression testing for fixed issues
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6
2019-12-30T07:00:09Z
2020-01-01T01:43:01Z
2019-12-31T15:04:45Z
MEMBER
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- [x] closes #5764 - [x] closes #7883 - [x] closes #7820 - [x] closes #8720 - [x] closes #6783 - [x] closes #7072 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
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30,555
read_csv s3 file parameter memory_map default is True?
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4
2019-12-30T08:18:05Z
2021-07-25T04:31:24Z
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#### Code Sample ```python # code 1 def get_pid(): info = pd.read_csv('s3://vision.algo.data/cyz/tmp/test/11.csv', header=None, names=['pid']) print(f'pid num : {len(info)}') # code 2 def get_pid(): info = pd.read_csv('s3://vision.algo.data/cyz/tmp/test/11.csv', header=None, names=['pid'], memory_map=False) print(f'pid num : {len(info)}') while True: get_pid() time.sleep(4) ``` #### Problem description when I use `code1`, if s3 file changed, `info` not change. `code2` can find the change. The difference between these two code is parameter `memory_map`, actually, default `memory_map` is False, so I was confused. #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.7.5.final.0 python-bits : 64 OS : Linux OS-release : 4.4.0-1098-aws machine : x86_64 processor : x86_64 byteorder : little LC_ALL : None LANG : en_US.UTF-8 LOCALE : en_US.UTF-8 pandas : 0.25.3 numpy : 1.17.4 pytz : 2019.3 dateutil : 2.8.0 pip : 19.3.1 setuptools : 42.0.2 Cython : None pytest : None hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : 2.8.4 (dt dec pq3 ext lo64) jinja2 : 2.10.3 IPython : 7.10.1 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 s3fs : 0.4.0 scipy : 1.3.3 sqlalchemy : 1.3.11 tables : None xarray : None xlrd : None xlwt : None xlsxwriter : None </details>
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DOC: Document behaviour of head(n), tail(n) for negative values of n except on GroupBy
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3
2019-12-30T10:55:14Z
2019-12-30T22:13:49Z
2019-12-30T22:13:40Z
CONTRIBUTOR
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- [x] xref #30192 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry Output of `python3 scripts/validate_docstrings.py pandas.DataFrame.head` ```bash ################################################################################ ###################### Docstring (pandas.DataFrame.head) ###################### ################################################################################ Return the first `n` rows. This function returns the first `n` rows for the object based on position. It is useful for quickly testing if your object has the right type of data in it. For negative values of `n`, this function returns all rows except the last `n` rows, equivalent to ``df[:-n]``. Parameters ---------- n : int, default 5 Number of rows to select. Returns ------- same type as caller The first `n` rows of the caller object. See Also -------- DataFrame.tail: Returns the last `n` rows. Examples -------- >>> df = pd.DataFrame({'animal': ['alligator', 'bee', 'falcon', 'lion', ... 'monkey', 'parrot', 'shark', 'whale', 'zebra']}) >>> df animal 0 alligator 1 bee 2 falcon 3 lion 4 monkey 5 parrot 6 shark 7 whale 8 zebra Viewing the first 5 lines >>> df.head() animal 0 alligator 1 bee 2 falcon 3 lion 4 monkey Viewing the first `n` lines (three in this case) >>> df.head(3) animal 0 alligator 1 bee 2 falcon For negative values of `n` >>> df.head(-3) animal 0 alligator 1 bee 2 falcon 3 lion 4 monkey 5 parrot ################################################################################ ################################## Validation ################################## ################################################################################ Docstring for "pandas.DataFrame.head" correct. :) ``` Output of `python3 scripts/validate_docstrings.py pandas.DataFrame.tail` ```bash ################################################################################ ###################### Docstring (pandas.DataFrame.tail) ###################### ################################################################################ Return the last `n` rows. This function returns last `n` rows from the object based on position. It is useful for quickly verifying data, for example, after sorting or appending rows. For negative values of `n`, this function returns all rows except the first `n` rows, equivalent to ``df[n:]``. Parameters ---------- n : int, default 5 Number of rows to select. Returns ------- type of caller The last `n` rows of the caller object. See Also -------- DataFrame.head : The first `n` rows of the caller object. Examples -------- >>> df = pd.DataFrame({'animal': ['alligator', 'bee', 'falcon', 'lion', ... 'monkey', 'parrot', 'shark', 'whale', 'zebra']}) >>> df animal 0 alligator 1 bee 2 falcon 3 lion 4 monkey 5 parrot 6 shark 7 whale 8 zebra Viewing the last 5 lines >>> df.tail() animal 4 monkey 5 parrot 6 shark 7 whale 8 zebra Viewing the last `n` lines (three in this case) >>> df.tail(3) animal 6 shark 7 whale 8 zebra For negative values of `n` >>> df.tail(-3) animal 3 lion 4 monkey 5 parrot 6 shark 7 whale 8 zebra ################################################################################ ################################## Validation ################################## ################################################################################ Docstring for "pandas.DataFrame.tail" correct. :) ``` Output of `./ci/code_checks.sh doctests` passed for `groupby.py`
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30,557
Should I be able to initialise a Series with dtype PeriodDtype?
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3
2019-12-30T11:49:25Z
2019-12-30T12:12:07Z
2019-12-30T12:12:06Z
MEMBER
null
#### Code Sample, a copy-pastable example if possible ```python import pandas as pd pd.Series([pd.PeriodIndex(['2000-03'], freq='M')]) # works pd.Series([pd.PeriodIndex(['2000-03'], freq='M')], dtype=pd.PeriodDtype('M')) # fails ``` #### Problem description The second command fails with ``` ValueError: Buffer has wrong number of dimensions (expected 1, got 2) ``` This confused me, as I am able to initialise Series with other dtypes: ``` pd.Series([pd.Interval(left=0, right=5)], dtype=pd.IntervalDtype()) # works pd.Series([1], dtype=pd.Int64Dtype()) # works pd.Series([1], dtype=pd.CategoricalDtype()) # works ``` #### Expected Output Probably something like this ``` 0 PeriodIndex(['2000-03'], dtype='period[M]', fr... dtype: 'period[M]' ``` #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : 2ec41bdc9b6dd59f48249262aa46e384698aa648 python : 3.7.3.final.0 python-bits : 64 OS : Linux OS-release : 4.15.0-72-generic machine : x86_64 processor : x86_64 byteorder : little LC_ALL : None LANG : en_GB.UTF-8 LOCALE : en_GB.UTF-8 pandas : 0.25.0+1471.g2ec41bdc9.dirty numpy : 1.17.3 pytz : 2019.3 dateutil : 2.8.0 pip : 19.3.1 setuptools : 42.0.2.post20191201 Cython : 0.29.14 pytest : 5.3.2 hypothesis : 4.55.4 sphinx : 2.3.0 blosc : None feather : None xlsxwriter : 1.2.6 lxml.etree : 4.4.2 html5lib : 1.0.1 pymysql : None psycopg2 : None jinja2 : 2.10.3 IPython : 7.9.0 pandas_datareader: None bs4 : 4.8.1 bottleneck : 1.3.1 fastparquet : 0.3.2 gcsfs : None lxml.etree : 4.4.2 matplotlib : 3.1.2 numexpr : 2.7.0 odfpy : None openpyxl : 3.0.1 pandas_gbq : None pyarrow : 0.15.1 pytables : None pytest : 5.3.2 s3fs : 0.4.0 scipy : 1.4.0 sqlalchemy : 1.3.11 tables : 3.6.1 tabulate : 0.8.6 xarray : 0.14.1 xlrd : 1.2.0 xlwt : 1.3.0 xlsxwriter : 1.2.6 numba : 0.46.0 </details>
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30,558
[TST] Test DataFrame.append with other dtypes
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2019-12-30T13:11:54Z
2019-12-30T17:54:27Z
2019-12-30T17:49:41Z
MEMBER
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- [x] closes #30445 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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30,559
BUG: Support win_type parameter with groupby.rolling
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4
2019-12-30T14:53:57Z
2020-10-05T01:11:35Z
null
NONE
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It appears that rolling aggregations on groupby objects do not behave as expected. It looks like the `win_type` parameter is ignored. Here's a minimal example: #### Code Sample In this example, a rolling mean is calculated with "uniform" weights and also with "blackman" weights. In each case, the mean is calculated on the ungrouped data and the grouped data, which _should_ give the same result as there is only one group. ```python import numpy as np import pandas as pd df = pd.DataFrame({'groups': ['g']*10, 'data': np.sin(np.arange(10))}) groups = df[['data', 'groups']].groupby('groups') # Rolling mean with uniform weights df['uniform'] = df['data'].rolling(4, win_type=None).mean() df['grp_uniform'] = groups.rolling(4, win_type=None).mean().values # Rolling mean with a e.g. blackman weights df['blackman'] = df['data'].rolling(4, win_type='blackman').mean() df['grp_blackman'] = groups.rolling(4, win_type='blackman').mean().values # The results should be equal, whether on grouped or ungrouped data assert df['uniform'].equals(df['grp_uniform']) # This passes assert df['blackman'].equals(df['grp_blackman']) # This fails print(df) ``` #### Problem description The last assert statement fails: the rolling aggregation on the groupby object does not work as expected. In that last calculation, it looks like the win_type='blackman' parameter was simply ignored, and the calculation was done with uniform weights. #### Expected Output Here is the resulting dataframe from the calculations above. The last two columns ought to be identical (but are not): <pre> groups data uniform grp_uniform blackman grp_blackman 0 g 0.000000 NaN NaN NaN NaN 1 g 0.841471 NaN NaN NaN NaN 2 g 0.909297 NaN NaN NaN NaN 3 g 0.141120 0.472972 0.472972 0.875384 0.472972 4 g -0.756802 0.283771 0.283771 0.525209 0.283771 5 g -0.958924 -0.166327 -0.166327 -0.307841 -0.166327 6 g -0.279415 -0.463506 -0.463506 -0.857863 -0.463506 7 g 0.656987 -0.334539 -0.334539 -0.619170 -0.334539 8 g 0.989358 0.102001 0.102001 0.188786 0.102001 9 g 0.412118 0.444762 0.444762 0.823172 0.444762 </pre> This is possibly related to similar issues #26597 and #26462. Here's my best effort at diagnosing what is going on under the hood... it looks like the `pandas.core.window.RollingGroupby` class inherits the `mean()` method from the `Rolling` class, and hence completely ignores the win_type parameter. #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.7.3.final.0 python-bits : 64 OS : Windows OS-release : 10 machine : AMD64 processor : Intel64 Family 6 Model 158 Stepping 9, GenuineIntel byteorder : little LC_ALL : None LANG : None LOCALE : None.None pandas : 0.25.1 numpy : 1.16.4 pytz : 2018.9 dateutil : 2.8.0 pip : 19.0.3 setuptools : 40.8.0 Cython : 0.29.6 pytest : 4.3.1 hypothesis : None sphinx : 1.8.5 blosc : None feather : None xlsxwriter : 1.1.5 lxml.etree : 4.3.2 html5lib : 1.0.1 pymysql : None psycopg2 : None jinja2 : 2.10 IPython : 7.4.0 pandas_datareader: None bs4 : 4.7.1 bottleneck : 1.2.1 fastparquet : None gcsfs : None lxml.etree : 4.3.2 matplotlib : 3.0.3 numexpr : 2.6.9 odfpy : None openpyxl : 2.6.1 pandas_gbq : None pyarrow : None pytables : None s3fs : None scipy : 1.2.1 sqlalchemy : 1.3.1 tables : 3.5.1 xarray : None xlrd : 1.2.0 xlwt : 1.3.0 xlsxwriter : 1.1.5 </details>
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30,560
BLD: Fix IntervalTree build warnings
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1
2019-12-30T17:28:58Z
2020-01-01T03:32:42Z
2020-01-01T02:45:56Z
MEMBER
null
- [X] closes #27169 - [X] closes #30365 - [X] tests added / passed - [X] passes `black pandas` - [X] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` xref #30366 cc @WillAyd
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2019-12-30T18:45:29Z
2020-01-02T21:53:12Z
2019-12-31T14:21:10Z
CONTRIBUTOR
null
- [x] closes #29676 Ref work done here: https://github.com/pandas-dev/pandas/pull/29712
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27
2019-12-30T19:23:21Z
2020-06-24T22:25:21Z
2020-06-24T22:25:21Z
CONTRIBUTOR
null
closes #9457 Greetings! This is my first pull-request on an open source project, so I hope I did not miss anything at least too obvious... Thank you, in advance :smile: I do have a few questions: * Should I add the `versionadded` directive in all docstrings that were changed? * Which "whatsnew" release notes should I add this change to? v1.0.0? * Should #9457 also be closed, as from my understanding this was also the underlying issue? * Should I be the one ticking the checkboxes below? This fixes the issue where: # Fails because it's doing (1 - .1 / .1001) assert_almost_equal(0.1, 0.1001, check_less_precise=True) # Works as intuitively expected assert_almost_equal( 0.1, 0.1001, atol=0.01, ) Commit message below: ------- This commit makes `assert_almost_equal` accept both relative and absolute precision when comparing numbers, through two new keyword arguments: `rtol`, and `atol`, respectively. Under the hood, `_libs.testing.assert_almost_equal` is now calling `math.isclose`, instead of an adaptaion of [numpy.testing.assert_almost_equal](https://docs.scipy.org/doc/numpy-1.17.0/reference/generated/numpy.testing.assert_almost_equal.html). - [x] closes #13357 - [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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1
2019-12-30T20:29:44Z
2019-12-30T21:48:21Z
2019-12-30T21:48:21Z
CONTRIBUTOR
null
Enforces the deprecation on tz-aware series / index converting to UTC and returning a datetime64[ns] ndarray. Closes https://github.com/pandas-dev/pandas/issues/6581 (this is the last one).
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PERF: regression in Series constructor
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2019-12-30T20:42:33Z
2019-12-31T16:12:02Z
2019-12-31T16:12:02Z
CONTRIBUTOR
null
This is captured in the `SeriesConstructor.time_constructor` asv. ```python In [8]: import pandas as pd ...: import numpy as np ...: ...: data = np.arange(1000) ...: index = pd.date_range('2000', periods=len(data)) ...: data = dict(zip(index, data)) ...: s = pd.Series(data, index=index) ``` On master ```python 848 ms ± 10.2 ms per loop (mean ± std. dev. of 7 runs, 1 loop each) ``` On 0.25.x ```python ...: %timeit Series(data, index=index) 82.5 ms ± 2.05 ms per loop (mean ± std. dev. of 7 runs, 10 loops each) ``` Looking into a bit now. We're spending a lot more time in `ensure_index` -> `is_period_dtype` / `is_dtype` / `construct_from_string`.
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TYP: Add return types to some top-level func
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0
2019-12-30T20:49:30Z
2019-12-31T12:37:14Z
2019-12-31T09:08:04Z
CONTRIBUTOR
null
Adds return type hints to some top-level funcs. I will take the rest over 1-2 more PRs. Having return types typed up will be good for the user experience (better piping etc.).
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544,007,913
MDExOlB1bGxSZXF1ZXN0MzU4MjEzMzYz
30,566
CLN: Clean test moments for expanding
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2
2019-12-30T20:51:29Z
2020-01-01T02:36:27Z
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MEMBER
null
- xref #30486 #30542 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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30,567
Boolean indexing into a series with assignment
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2
2019-12-30T21:02:16Z
2020-01-02T13:59:22Z
2020-01-02T13:59:22Z
NONE
null
I am curious if the following is the intended behavior: ```python x = pd.Series([None] * 10) y = [False] * 3 + [True] * 5 + [False] * 2 x[y] = range(5) x # 0 None # 1 None # 2 None # 3 3 # 4 4 # 5 0 # 6 1 # 7 2 # 8 None # 9 None ``` The expectation was that it would work as with `x.loc[y] = range(5)`: ```python # 0 None # 1 None # 2 None # 3 0 # 4 1 # 5 2 # 6 3 # 7 4 # 8 None # 9 None ``` If so, where can one read about the logic behind? <details> LANG : en_US.UTF-8 LOCALE : en_US.UTF-8 pandas : 0.25.3 numpy : 1.17.4 pytz : 2018.4 dateutil : 2.5.0 pip : 19.2.3 setuptools : 41.2.0 Cython : None pytest : 5.1.2 hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : 3.8.0 html5lib : 1.0.1 pymysql : None psycopg2 : None jinja2 : 2.8 IPython : 6.5.0 pandas_datareader: None xlsxwriter : None pandas_gbq : None pyarrow : 0.15.1 bs4 : 4.7.1 numexpr : None xarray : None fastparquet : None tables : None s3fs : None odfpy : None pytables : None xlrd : None gcsfs : None xlwt : None sqlalchemy : 1.3.4 scipy : 1.3.1 openpyxl : None lxml.etree : 3.8.0 matplotlib : 3.0.3 bottleneck : None </details>
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BUG: IntervalDtype.kind should be "O" instead of None
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2019-12-30T21:02:29Z
2019-12-31T12:26:14Z
2019-12-31T12:26:14Z
MEMBER
null
xref https://github.com/pandas-dev/pandas/issues/23563#issuecomment-569767644 This is causing some tests to fail in #28399 and is something that should fixed regardless. Some care is needed in order to ensure that `is_string_dtype` doesn't return `True` once this update has been made.
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BUG: Change IntervalDtype.kind from None to "O"
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3
2019-12-30T21:08:55Z
2019-12-31T17:20:18Z
2019-12-31T12:26:14Z
MEMBER
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- [X] closes #30568 - [X] tests added / passed - [X] passes `black pandas` - [X] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [X] whatsnew entry This is partially blocking #28399 as tests are failing there due to `kind` being `None`. cc @TomAugspurger
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CLN: refactor tests in test_moments_ewm.py
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2019-12-30T21:28:36Z
2020-01-03T13:26:37Z
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MEMBER
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- [ ] xref: #30486 #30542 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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3
2019-12-30T21:30:14Z
2019-12-31T16:12:10Z
2019-12-31T16:12:03Z
CONTRIBUTOR
null
Closes https://github.com/pandas-dev/pandas/issues/30564 PR ``` [ 50.00%] ··· series_methods.SeriesConstructor.time_constructor ok [ 50.00%] ··· ====== ========== data ------ ---------- None 670±0μs dict 84.4±0ms ====== ========== ``` master ``` [ 50.00%] ··· series_methods.SeriesConstructor.time_constructor ok [ 50.00%] ··· ====== ========= data ------ --------- None 756±0μs dict 725±0ms ====== ========= ``` No whatsnew, since the regression was only on master.
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2019-12-30T22:07:17Z
2019-12-31T14:03:19Z
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pandas\core\dtypes\generic.py:7: error: 'classmethod' used with a non-method pandas\core\config_init.py:310: error: Name 'get_ipython' is not defined pandas\core\indexes\category.py:588: error: Need type annotation for 'missing' (hint: "missing: List[<type>] = ...")
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2019-12-30T22:34:50Z
2019-12-31T14:04:09Z
2019-12-31T12:27:11Z
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pandas\io\json\_normalize.py:282: error: Argument 1 to "zip" has incompatible type "Union[str, List[Any], None]"; expected "Iterable[Any]" pandas\io\json\_normalize.py:299: error: Argument 1 to "zip" has incompatible type "Union[str, List[Any], None]"; expected "Iterable[Any]"
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12
2019-12-30T22:52:50Z
2020-01-03T02:16:43Z
2020-01-03T02:16:40Z
CONTRIBUTOR
null
Closes https://github.com/pandas-dev/pandas/issues/29032 This is extremely ugly, but gets the job done. It's probably worth doing to avoid silently failing, but not sure. cc @topper-123.
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30,575
CLN: assorted cleanups
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0
2019-12-30T23:01:39Z
2019-12-31T16:05:42Z
2019-12-31T09:07:24Z
MEMBER
null
Salvaging what I can from some abandoned branches.
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30,576
ADMIN: display issue metrics
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2019-12-31T04:30:05Z
2020-09-22T01:35:38Z
null
CONTRIBUTOR
null
came across this blog / repo which shows nice issue metrics for matplotlib - should be very easy to create one for pandas https://github.com/LaurenceMolloy/RepoDash cc @pandas-dev/pandas-core @tacaswell
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CLN: Clean _test_moments_consistency in common.py
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1
2019-12-31T08:38:02Z
2020-01-01T02:17:37Z
2020-01-01T02:15:33Z
MEMBER
null
- [ ] xref #30486 #30542 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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ENH: Add ignore_index to sort_index
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3
2019-12-31T10:46:18Z
2020-02-13T00:54:28Z
2020-01-03T13:10:49Z
MEMBER
null
- [x] closes #30114 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry @jreback I just looked back at #30114 and found out that i overlooked to add `ignore_index` to `sort_index`, and this might be the reason this issue is still left open. I added this to `sort_index` to close this issue.
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- [x] ref #30454 - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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30,580
BUG: Series __setitem__ gives wrong result with bool indexer
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2
2019-12-31T12:55:01Z
2020-01-03T11:41:09Z
2020-01-02T13:59:22Z
MEMBER
null
Series.__setitem__ gives wrong result with bool indexer and when length of new data matches the number of Trues and new data is neither a Series nor a numpy array - [x] closes #30567 - [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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performance of loc and iloc
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8
2019-12-31T13:15:49Z
2020-01-02T01:16:18Z
2020-01-02T01:16:17Z
NONE
null
```python import pandas as pd import numpy as np import time # print(pd.show_versions()) # create the columns and rows of the df assets = np.array(range(3400)) dates = np.array(range(5000)) df_bool = pd.DataFrame(False, index=dates, columns=assets) # create the array from the df a = df_bool.to_numpy() valid_since = {asset: np.random.choice(dates, size=1)[0] for asset in assets} h = time.time() for asset in assets: start = valid_since[asset] df_bool.loc[start].loc[asset] = True print(time.time() - h) h = time.time() for asset in assets: start = valid_since[asset] df_bool.iloc[start].iloc[asset] = True print(time.time() - h) h = time.time() for asset in assets: start = valid_since[asset] df_bool.loc[start, asset] = True print(time.time() - h) h = time.time() for asset in assets: start = valid_since[asset] df_bool.iloc[start, asset] = True print(time.time() - h) h = time.time() for asset in assets: start = valid_since[asset] a[start, asset] = True print(time.time() - h) ``` #### Problem description Hi, happy new year xD. I have a problem with the performance using the loc and iloc when it has the comma, for instance the df.iloc [1000, 1000] takes more time in the code of example that df.iloc [1000] .iloc [1000] and I don't understand why this is happen, and Why the access of df.loc [1000, 1000] is so slow, the code take a lot of time when use this part. Note: All in the code use direct accessing is not doing any kind of slicing or taking multiple assets or dates at the same time it only needs to update one cells at time. <details> INSTALLED VERSIONS ------------------ commit : None python : 3.7.4.final.0 python-bits : 32 OS : Windows OS-release : 10 machine : AMD64 processor : Intel64 Family 6 Model 58 Stepping 9, GenuineIntel byteorder : little LC_ALL : None LANG : None LOCALE : None.None pandas : 0.25.0 numpy : 1.17.0 pytz : 2019.2 dateutil : 2.8.0 pip : 19.2.3 setuptools : 40.8.0 Cython : None pytest : 5.0.1 hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : 1.1.8 lxml.etree : 4.4.1 html5lib : None pymysql : None psycopg2 : None jinja2 : None IPython : None pandas_datareader: 0.8.1 bs4 : 4.8.0 bottleneck : None fastparquet : None gcsfs : None lxml.etree : 4.4.1 matplotlib : 3.1.1 numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pytables : None s3fs : None scipy : 1.3.1 sqlalchemy : None tables : None xarray : None xlrd : 1.2.0 xlwt : None xlsxwriter : 1.1.8 None </details>
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16
2019-12-31T13:32:48Z
2020-01-05T16:27:52Z
2020-01-05T16:21:07Z
CONTRIBUTOR
null
Next step to #30565. Next up will be the pd.read_* functions.
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WIP: Restructuring all builds (NOT TO MERGE)
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2019-12-31T14:55:24Z
2020-01-06T13:06:24Z
2020-01-06T13:06:24Z
MEMBER
null
- [X] closes #29685 So far just testing how this looks like in the CI. Will open small PRs and get this implementing iteratively if this looks good.
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21
2019-12-31T16:07:32Z
2020-05-28T18:48:46Z
2020-05-09T20:10:36Z
MEMBER
null
- [x] closes #3729 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry Note that this PR will *NOT* fix the issue for `pivot_table` for now, the reason is that there is already an argument called `dropna` in `pivot_table` and it has slightly different meaning, currently it means: `Do not include columns whose entries are all NaN`. I would propose a change in the follow-up PR for this since this is an api change: change the name of current `dropna` to `drop_all_na` maybe? and then add `dropna` to it and it is aligned with the `dropna` in groupby. Summary: After this PR, it will optional to inlcude NaN in group keys, e.g. below, and i also add example in docstring as well: ```python a = [['a', 'b', 12, 12, 12], ['a', None, 12.3, 233., 12], ['b', 'a', 123.23, 123, 1], ['a', 'b', 1, 1, 1.]] df = pd.DataFrame(a, columns=['a', 'b', 'c', 'd', 'e']) df.groupby(by=['a', 'b']).sum() ``` will get ![Screen Shot 2020-01-01 at 11 01 16 AM](https://user-images.githubusercontent.com/9269816/71640222-19e68900-2c86-11ea-8749-c223729eec99.png) with `dropna=False`, ```python df.groupby(by=['a', 'b'], dropna=False).sum() ``` ![Screen Shot 2020-01-01 at 11 01 23 AM](https://user-images.githubusercontent.com/9269816/71640225-2ff44980-2c86-11ea-9c66-a18147179c12.png) For Series, it is the same: ```python s = pd.Series([1, 2, 3, 3], index=["a", 'a', 'b', np.nan]) s.groupby(level=0).sum() s.groupby(level=0, dropna=False).sum() ``` ![Screen Shot 2020-01-01 at 11 01 32 AM](https://user-images.githubusercontent.com/9269816/71640228-4d291800-2c86-11ea-9d66-4a4be1a7347d.png)
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BUG: Disable parallel cythonize on Windows (GH 30214)
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4
2019-12-31T17:09:11Z
2020-01-03T21:41:05Z
2020-01-01T01:34:36Z
CONTRIBUTOR
null
- [x ] closes #30356 - [ ] tests added / passed - N/A - [ ] passes `black pandas` - Didn't run - changes too many files - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry Added test in `setup.py` to check if nthreads is positive and on Windows.
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REF: separate casting out of Index.__new__
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1
2019-12-31T17:29:20Z
2020-01-01T03:09:51Z
2020-01-01T02:18:25Z
MEMBER
null
first of two PRs to separate array casting/inference out of `Index.__new__`. Once both are in place, we'll be able to do all inference/casting up-front and simplify the constructor quite a bit. We'll also be able to look into sharing code between Index/Series/array, and address a handful of outstanding issues with the Index constructor.
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REF: share code between DatetimeIndex and TimedeltaIndex
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1
2019-12-31T17:55:12Z
2020-01-01T02:08:09Z
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BUG: validate Index data is 1D + deprecate multi-dim indexing
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34
2019-12-31T20:31:38Z
2020-01-27T19:14:57Z
2020-01-09T21:17:06Z
MEMBER
null
- [x] closes #13601 - [x] closes #27125 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry This changes the behavior of `idx[:, None]` to return an ndarray instead of an invalid Index, needed to keep matplotlib tests working. See also #20285 which this does not entirely close. That becomes pretty easy to address though once a decision is made on whether to treat `[[0, 1], [2, 3]]` like `[(0, 1), (2, 3)]` (the latter becomes a MultiIndex, the former currently becomes an invalid Index)
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544,268,553
MDU6SXNzdWU1NDQyNjg1NTM=
30,589
How can I force Pandas `read_html` function to read digit field as string not integer
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2019-12-31T20:49:23Z
2020-01-02T17:57:43Z
2020-01-02T17:57:43Z
NONE
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Is there a possible way to convert the field from `int` to `str`? > I have explored the issues like https://github.com/pandas-dev/pandas/issues/10534, https://github.com/pandas-dev/pandas/issues/21379, https://github.com/gte620v/pandas/blob/5cb8243f2dd31cc2155627f29cfc89bbf6d4b84b/pandas/io/tests/test_html.py#L715 > > I do not think `converters` arg fit for our usage since the table is updated everyday and it may add a new column, then we need manually add a new key to the parameter Here is the entire stacktrace when I used the function ``` PS C:\Users\Zhenye.na\Desktop> python3 .\dash-prod.py .\dash-prod.py:4: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working from collections import Mapping, Iterable Traceback (most recent call last): File ".\dash-prod.py", line 59, in <module> df = pd.read_html(response.text, skiprows=1) File "C:\Users\Zhenye.na\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\pandas\io\html.py", line 1105, in read_html displayed_only=displayed_only, File "C:\Users\Zhenye.na\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\pandas\io\html.py", line 915, in _parse for table in tables: File "C:\Users\Zhenye.na\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\pandas\io\html.py", line 213, in <genexpr> return (self._parse_thead_tbody_tfoot(table) for table in tables) File "C:\Users\Zhenye.na\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\pandas\io\html.py", line 411, in _parse_thead_tbody_tfoot header = self._expand_colspan_rowspan(header_rows) File "C:\Users\Zhenye.na\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\site-packages\pandas\io\html.py", line 459, in _expand_colspan_rowspan colspan = int(self._attr_getter(td, "colspan") or 1) ValueError: invalid literal for int() with base 10: '\\"1\\"' ``` The core usage of `read_html` function code is as follows: ```python response = requests.get(url, headers=hdrs) df = pd.read_html(response.text, skiprows=1)[0] print(df) ``` I would love to use the `read_html` function to extract the table in the response returned from the REST API. I have test the function in a small scale table, which contains only digits and it works. But for the data returned from REST API contains characters and digits. Here is a demo of what the table looks like: (Assume `DC1` and `Location 1` has one `'\n'` symbol separated) | Date | DC 1 Location 1 | DC 2 Location 2 | DC 3 Location 3 | |:-----:|:----------------:|:-----------------:|:-----------------:| | 03/04 | 1.23.4 | 1.23.4 | 1.23.4 | | 04/05 | 1.23.4 | 1.23.4 | 1.23.4 | I assume the error message may because of the `'.'` symbol in field like `1.23.4` but I am not sure how to fix it. Any ideas or thoughts are appreciated! Thanks!
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DOC: Add info on dtype strings
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10
2019-12-31T22:44:06Z
2020-01-03T13:18:34Z
2020-01-03T13:18:34Z
CONTRIBUTOR
null
#### Problem description I've been studying the new `string`, `boolean` and `Intxx` dtypes and think it would be worthwhile to add something about the strings that you are allowed to use with extension arrays in specifying the dtypes. It could be an additional column in the dtypes table here: https://dev.pandas.io/docs/getting_started/basics.html#dtypes I think the following table is correct: Data Type | Array | Possible Strings ------------|--------------|---------------------------------------| `DatetimeTZDtype` | `DatetimeArray` | `'datetime64[ns, <tz>]'`  `CategoricalDtype` | `Categorical` | `'category'` `PeriodDtype` | `PeriodArray` | `'period[<freq>]' or 'Period[<freq>]'` `SparseDtype` | `SparseArray` | `'Sparse'`, `'Sparse[int]'`, `'Sparse[int32, 0]'`, `'Sparse[int64, 0]'`, `'Sparse[float64, nan]'`, `'Sparse[float32, nan]'` `IntervalDtype` | `IntervalArray` | `'interval'`, `'Interval'`, `'Interval[<np.numeric>]'`, `'Interval[datetime64[ns, <tz>]]'`, `'Interval[timedelta64[<freq>]]'` `Int64Dtype` (and others) | `IntegerArray` | `'Int8'`, `'Int16'`, `'Int32'`, `'Int64'`, `'UInt8'`, `'UInt16'`, `'UInt32'`, `'UInt64'` `StringDtype` | `StringArray` | `'string'` `BooleanDtype` | `BooleanArray` | `'boolean'` I also think we may want to make it clear that if you specify a string not in that table, it needs to be a string acceptable as a `numpy` dtype. If people like @TomAugspurger and @jorisvandenbossche think this is useful, I'll add a column to that table in the docs (or maybe have to use a separate table because of the length of the last column above). Also, should we consider allowing `'Boolean'` and `'String'` and `'Category'`, i.e. type names with a leading capital letter? We're inconsistent in terms of what case is allowed in different places for the strings representing dtypes (see `period/Period` and `interval/Interval`)
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CLN: datetimelike EA and Index cleanups
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1
2020-01-01T00:19:57Z
2020-01-01T02:07:29Z
2020-01-01T01:39:20Z
MEMBER
null
Working on sharing code between these classes better (xref #20587) and closing in on implementing ExtensionIndex.
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CLN: remove no-longer-reachable addsub_int_array
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2020-01-01T00:56:04Z
2020-01-01T02:28:33Z
2020-01-01T02:25:59Z
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MDU6SXNzdWU1NDQyOTk3NzY=
30,593
Pandas date_range does not work when using periods and adding holiday
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3
2020-01-01T02:01:00Z
2020-01-05T21:39:10Z
2020-01-05T21:39:10Z
NONE
null
This code works fine ```` pd.date_range(start='2020-11-25 10:00',periods=14, freq=pd.offsets.CustomBusinessHour(start='10:00')) ```` but if I add holidays then it produces more than 14 periods ```` pd.date_range(start='2020-11-25 10:00',periods=14, freq=pd.offsets.CustomBusinessHour(start='10:00',holidays=['2020-11-26'])) ```` Output: ```` DatetimeIndex(['2020-11-25 10:00:00', '2020-11-25 11:00:00', '2020-11-25 12:00:00', '2020-11-25 13:00:00', '2020-11-25 14:00:00', '2020-11-25 15:00:00', '2020-11-25 16:00:00', '2020-11-27 10:00:00', '2020-11-27 11:00:00', '2020-11-27 12:00:00', '2020-11-27 13:00:00', '2020-11-27 14:00:00', '2020-11-27 15:00:00', '2020-11-27 16:00:00', '2020-11-30 10:00:00', '2020-11-30 11:00:00', '2020-11-30 12:00:00', '2020-11-30 13:00:00', '2020-11-30 14:00:00', '2020-11-30 15:00:00', '2020-11-30 16:00:00', '2020-12-01 10:00:00', '2020-12-01 11:00:00', '2020-12-01 12:00:00', '2020-12-01 13:00:00', '2020-12-01 14:00:00', '2020-12-01 15:00:00', '2020-12-01 16:00:00', '2020-12-02 10:00:00', '2020-12-02 11:00:00', '2020-12-02 12:00:00'], dtype='datetime64[ns]', freq='CBH') ```` If I replace `periods` with the corresponding `end` then everything works fine. ```` pd.date_range(start='2020-11-25 10:00',end='2020-11-27 16:00:00', freq=pd.offsets.CustomBusinessHour(start='10:00',holidays=['2020-11-26'])) ```` I am not sure why date_range has this weird behavior. Appreciate any help.
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30,594
BUG: DTA/TDA/PA add/sub object-dtype
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3
2020-01-01T02:54:24Z
2020-01-01T03:47:01Z
2020-01-01T03:41:35Z
MEMBER
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Bonus: we get to get rid of is_offsetlike
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REF: share join methods for DTI/TDI
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2
2020-01-01T02:59:51Z
2020-01-01T04:37:15Z
2020-01-01T04:28:06Z
MEMBER
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The only actual changed behavior is in the new `_is_convertible_to_index_for_join` method where it first checks: ``` if isinstance(other, cls): return False ``` In master, TimedeltaIndex uses _is_convertible_to_index which returns True here. The DTI method behavior is unchanged.
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REF: move inference/casting out of Index.__new__
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0
2020-01-01T03:38:59Z
2020-01-03T02:48:19Z
2020-01-01T05:26:01Z
MEMBER
null
The new function operates only on arrays, not Indexes. This gets us close to being able to just use `pd.array` here.
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544,305,504
MDU6SXNzdWU1NDQzMDU1MDQ=
30,597
calculate business hours between two time stamp
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3
2020-01-01T03:40:02Z
2020-01-01T16:02:32Z
2020-01-01T14:44:57Z
NONE
null
<img width="488" alt="df" src="https://user-images.githubusercontent.com/55054825/71637854-1991c200-2c75-11ea-8090-b21ccb13ba93.PNG"> I have to calculate business hours between two time stamp. Challenge is Monday and Saturday have different business hours than rest of the weekdays. Monday starts at 2:30 AM and ends at 11:59 PM. Saturday starts at 00:00 AM and ends at 6:30 AM. Rest of the weekdays starts at 00:00 AM and ends at 11:59 PM. * All times are in IST.
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30,598
CLN: Remove int32 and float32 dtypes from IntervalTree
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1
2020-01-01T03:43:53Z
2020-01-01T21:14:22Z
2020-01-01T18:19:08Z
MEMBER
null
There isn't a practical way to actually get an `IntervalTree` with `int32`/`float32` dtypes since `IntervalIndex` is backed by two pandas indexes and we don't have a `Int32Index` or `Float32Index`. These indexes are used to create the underlying `IntervalTree` that backs an `IntervalIndex`, so we're guaranteed to have `int64`/`float64` dtype data when initializing. The only way that comes to mind that a user could create an `IntervalTree` with `int32`/`float32` dtype would be by explicitly initializing a standalone `IntervalTree` with `int32`/`float32` arrays, which doesn't seem particularly likely. This should also help with build times as it results in 8 less node classes being generated. Didn't add a whatsnew note since I don't think `IntervalTree` is user facing (could be wrong?) but can add one if desired since this is technically a breaking change.
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MDExOlB1bGxSZXF1ZXN0MzU4NDUyMjI4
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REF: share _wrap_joined_index
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1
2020-01-01T05:12:17Z
2020-01-01T16:32:50Z
2020-01-01T16:03:07Z
MEMBER
null
this is the last of the trivial ones AFAICT. To get the others we're going to have to smooth out small differences in behavior, which should happen in non-refactoring PRs.
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BUG: Ensure df.itertuples() uses plain tuples correctly
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1
2020-01-01T11:53:53Z
2020-01-06T09:15:27Z
2020-01-02T00:58:16Z
CONTRIBUTOR
null
Currently DataFrame.itertuples() has an off by one error when it inspects whether or not it should return namedtuples or plain tuples in it's response. This PR addresses that bug by correcting the condition that is used when making the check. Closes: #28282 - [x] closes #xxxx - [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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1
2020-01-01T22:30:17Z
2020-01-02T16:52:59Z
2020-01-02T13:55:53Z
MEMBER
null
Working towards creating an ExtensionIndexMixin to be shared by all our backed-be-EA indexes, which would ideally grow into ExtensionIndex. Removes CategoricalIndex._codes_for_groupby, which would raise AttributeError if it were ever called.
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544,406,115
MDExOlB1bGxSZXF1ZXN0MzU4NTIzMDIz
30,606
CLN: remove CategoricalIndex.itemsize, should have gone in #29918
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2020-01-01T22:34:38Z
2020-01-02T01:44:41Z
2020-01-02T01:02:23Z
MEMBER
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30,607
REF: Delegate more methods for DTI/TDI/PI
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2020-01-01T23:43:35Z
2020-01-02T02:42:23Z
2020-01-02T02:38:26Z
MEMBER
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544,413,958
MDExOlB1bGxSZXF1ZXN0MzU4NTI4NTY3
30,608
CLN: remove warnings clearing
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1
2020-01-02T00:11:05Z
2020-01-02T02:40:33Z
2020-01-02T02:36:50Z
MEMBER
null
the tm.assert_produces_warning `clear` kwarg is no longer used, we could consider removing it
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30,609
Error on Warnings From C Extensions
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13
2020-01-02T00:16:52Z
2020-04-02T18:38:17Z
2020-04-01T21:51:42Z
MEMBER
null
May differ on other platforms, but currently I see about 19 warnings from C extensions still left. I think we should aim to clean these up and set the `Werror` flag in CI as can help be proactive in identifying bugs from extensions Here is the list of remaining warnings from a parallel build, so order may not be relevant ```sh warning: pandas/_libs/groupby.pyx:1088:26: Unreachable code warning: pandas/_libs/window/aggregations.pyx:59:47: Buffer unpacking not optimized away. warning: pandas/_libs/window/aggregations.pyx:59:47: Buffer unpacking not optimized away. warning: pandas/_libs/window/aggregations.pyx:60:47: Buffer unpacking not optimized away. warning: pandas/_libs/window/aggregations.pyx:60:47: Buffer unpacking not optimized away. pandas/_libs/hashing.c:25387:20: warning: unused function '__pyx_memview_get_object' [-Wunused-function] static PyObject *__pyx_memview_get_object(const char *itemp) { ^ pandas/_libs/hashing.c:25392:12: warning: unused function '__pyx_memview_set_object' [-Wunused-function] static int __pyx_memview_set_object(const char *itemp, PyObject *obj) { ^ pandas/_libs/hashtable.c:63498:20: warning: unused function '__pyx_memview_get_object' [-Wunused-function] static PyObject *__pyx_memview_get_object(const char *itemp) { ^ pandas/_libs/hashtable.c:63503:12: warning: unused function '__pyx_memview_set_object' [-Wunused-function] static int __pyx_memview_set_object(const char *itemp, PyObject *obj) { ^ pandas/_libs/algos.c:81415:3: warning: code will never be executed [-Wunreachable-code] __Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer); ^~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:83050:3: warning: code will never be executed [-Wunreachable-code] __Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer); ^~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:83956:3: warning: code will never be executed [-Wunreachable-code] __Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer); ^~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:84862:3: warning: code will never be executed [-Wunreachable-code] __Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer); ^~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:85039:3: warning: code will never be executed [-Wunreachable-code] __Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer); ^~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:85945:3: warning: code will never be executed [-Wunreachable-code] __Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer); ^~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:89901:19: warning: assigning to '__pyx_t_5numpy_uint8_t *' (aka 'unsigned char *') from 'const __pyx_t_5numpy_uint8_t *' (aka 'const unsigned char *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers] __pyx_v_v = (&(*((__pyx_t_5numpy_uint8_t const *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_values.data + __pyx_t_13 * __pyx_v_values.strides[0]) ) + __pyx_t_14 * __pyx_v_values.strides[1]) )))); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:92699:19: warning: assigning to '__pyx_t_5numpy_int8_t *' (aka 'signed char *') from 'const __pyx_t_5numpy_int8_t *' (aka 'const signed char *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers] __pyx_v_v = (&(*((__pyx_t_5numpy_int8_t const *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_values.data + __pyx_t_13 * __pyx_v_values.strides[0]) ) + __pyx_t_14 * __pyx_v_values.strides[1]) )))); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:98041:19: warning: assigning to '__pyx_t_5numpy_int16_t *' (aka 'short *') from 'const __pyx_t_5numpy_int16_t *' (aka 'const short *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers] __pyx_v_v = (&(*((__pyx_t_5numpy_int16_t const *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_values.data + __pyx_t_13 * __pyx_v_values.strides[0]) ) + __pyx_t_14 * __pyx_v_values.strides[1]) )))); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:103383:19: warning: assigning to '__pyx_t_5numpy_int32_t *' (aka 'int *') from 'const __pyx_t_5numpy_int32_t *' (aka 'const int *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers] __pyx_v_v = (&(*((__pyx_t_5numpy_int32_t const *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_values.data + __pyx_t_13 * __pyx_v_values.strides[0]) ) + __pyx_t_14 * __pyx_v_values.strides[1]) )))); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:107434:19: warning: assigning to '__pyx_t_5numpy_int64_t *' (aka 'long *') from 'const __pyx_t_5numpy_int64_t *' (aka 'const long *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers] __pyx_v_v = (&(*((__pyx_t_5numpy_int64_t const *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_values.data + __pyx_t_13 * __pyx_v_values.strides[0]) ) + __pyx_t_14 * __pyx_v_values.strides[1]) )))); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:110194:19: warning: assigning to '__pyx_t_5numpy_float32_t *' (aka 'float *') from 'const __pyx_t_5numpy_float32_t *' (aka 'const float *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers] __pyx_v_v = (&(*((__pyx_t_5numpy_float32_t const *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_values.data + __pyx_t_13 * __pyx_v_values.strides[0]) ) + __pyx_t_14 * __pyx_v_values.strides[1]) )))); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pandas/_libs/algos.c:112955:19: warning: assigning to '__pyx_t_5numpy_float64_t *' (aka 'double *') from 'const __pyx_t_5numpy_float64_t *' (aka 'const double *') discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers] __pyx_v_v = (&(*((__pyx_t_5numpy_float64_t const *) ( /* dim=1 */ (( /* dim=0 */ (__pyx_v_values.data + __pyx_t_13 * __pyx_v_values.strides[0]) ) + __pyx_t_14 * __pyx_v_values.strides[1]) )))); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings generated. 2 warnings generated. 13 warnings generated. pandas/_libs/tslibs/conversion.c:33343:20: warning: unused function '__pyx_memview_get_object' [-Wunused-function] static PyObject *__pyx_memview_get_object(const char *itemp) { ^ pandas/_libs/tslibs/conversion.c:33348:12: warning: unused function '__pyx_memview_set_object' [-Wunused-function] static int __pyx_memview_set_object(const char *itemp, PyObject *obj) { ^ 2 warnings generated. ```
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544,416,237
MDU6SXNzdWU1NDQ0MTYyMzc=
30,610
DEPR: Remove pandas.datetime
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2
2020-01-02T00:36:40Z
2020-09-09T23:04:43Z
2020-01-02T04:01:44Z
CONTRIBUTOR
null
A follow up issue from #30296 , where it was discussed that pd.datetime should also be deprecated to only allow imports directly from datetime ``` >>> import pandas as pd >>> pd.datetime <class 'datetime.datetime'> ```
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544,416,985
MDExOlB1bGxSZXF1ZXN0MzU4NTMwNjY5
30,611
Improve ASV Environment Creation Performance
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3
2020-01-02T00:46:35Z
2020-01-16T00:33:27Z
2020-01-02T15:41:12Z
MEMBER
null
...by leveraging a lot of the recent work to enable parallel CI Overriding default values documented here: https://asv.readthedocs.io/en/stable/asv.conf.json.html#build-command-install-command-uninstall-command I've picked 4 as the value assuming most people running benchmarks will have 2-4 cores. YMMV
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MDExOlB1bGxSZXF1ZXN0MzU4NTM1NTIw
30,612
CLN: replacing str.format with f-strings in several files. #29547
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1
2020-01-02T02:00:41Z
2020-01-03T00:36:54Z
2020-01-03T00:36:40Z
CONTRIBUTOR
null
- [ ] xref #29547 - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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30,613
TYP: Add TypeVars to NDFrame
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1
2020-01-02T03:08:10Z
2020-03-02T22:35:16Z
2020-01-03T01:05:17Z
CONTRIBUTOR
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Adding TypeVars to NDFrame methods that don't return optional values. This ensures that e.g. ``(DataFrame|Series).astype`` and ``(DataFrame|Series).copy`` have a known return type, which is nice. Also adds ``PandasObject._ensure_type``, which is a method used to solve the problem with optional return values, but where we actually know the return type. This is a helper method to help with the tediousness of optional return values experienced in #30565.
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