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xref #38617
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BUG: tm.assert_produces_warning() doesn't work with expected_warning=None or False
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2020-12-21T18:29:49Z
2020-12-22T13:40:41Z
2020-12-22T13:40:41Z
MEMBER
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- [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 warnings import pandas._testing as tm with tm.assert_produces_warning(None): warnings.warn(UserWarning) with tm.assert_produces_warning(False): warnings.warn(RuntimeWarning) ``` #### Problem description Docs for this function say "To check that no warning is returned, specify ``False`` or ``None``". It also includes the second example as something that should raise an `AssertionError`. However, both these examples do not raise. #### Expected Output Raise `AssertionError` for both. #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : 9a46a4b700d1b794d9a944928ac95f4cb742b259 python : 3.8.6.final.0 python-bits : 64 OS : Darwin OS-release : 19.6.0 Version : Darwin Kernel Version 19.6.0: Thu Oct 29 22:56:45 PDT 2020; root:xnu-6153.141.2.2~1/RELEASE_X86_64 machine : x86_64 processor : i386 byteorder : little LC_ALL : None LANG : None LOCALE : None.UTF-8 pandas : 1.3.0.dev0+125.g9a46a4b70 numpy : 1.19.4 pytz : 2020.4 dateutil : 2.8.1 pip : 20.3.1 setuptools : 49.6.0.post20201009 Cython : 0.29.21 pytest : 6.2.0 hypothesis : 5.43.3 sphinx : 3.3.1 blosc : None feather : None xlsxwriter : 1.3.7 lxml.etree : 4.6.2 html5lib : 1.1 pymysql : None psycopg2 : None jinja2 : 2.11.2 IPython : 7.19.0 pandas_datareader: None bs4 : 4.9.3 bottleneck : 1.3.2 fsspec : 0.8.4 fastparquet : 0.4.1 gcsfs : 0.7.1 matplotlib : 3.3.3 numexpr : 2.7.1 odfpy : None openpyxl : 3.0.5 pandas_gbq : None pyarrow : 2.0.0 pyxlsb : None s3fs : 0.4.2 scipy : 1.5.3 sqlalchemy : 1.3.20 tables : 3.6.1 tabulate : 0.8.7 xarray : 0.16.2 xlrd : 1.2.0 xlwt : 1.3.0 numba : 0.52.0 </details>
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- [x] closes #38502 - [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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7
2020-12-21T19:47:42Z
2021-01-21T15:15:19Z
2021-01-21T15:15:19Z
MEMBER
null
xref #33401 which discusses astype, #24559 which discusses constructors. I think these need to be considered jointly. Two big-picture questions. 1) when we pass `constructor(dt64values, tz=tz)`, do we interpret dt64values as UTC or wall-times? 2) when we pass constructor(dt64values).astype("M8[ns, tz]")`, do we interpret dt64values as UTC or wall-times? Let's check the current behavior on master for Timestamp, DatetimeIndex, and Series (see code block below if you want to check my work) cls | Timestamp | DatetimeIndex | Series | ------------------------ | ------------- | ------------- | ------- | cls(dt64, dtype=dt64tz) | UTC | Wall | UTC | cls(dt64).astype(dt64tz) | N/A | Wall | UTC | cls(dt64tz).astype("M8[ns]") | N/A | UTC | UTC | If we were starting fresh, I would probably lean towards making these all interpret dt64 as wall-times. But because these are already mostly-UTC, it would be an easier change to bring the DatetimeIndex behavior in line with the others. Thoughts? cc @jorisvandenbossche @mroeschke @jreback ``` values = (3600 * 10**9 * np.arange(4)).astype("datetime64[ns]") dt64 = values[-1] tz = "US/Pacific" dtype = pd.DatetimeTZDtype(tz=tz) ts = pd.Timestamp(dt64, tz=tz) dti = pd.DatetimeIndex(values, dtype=dtype) ser = pd.Series(values, dtype=dtype) if_wall = pd.DatetimeIndex(values).tz_localize(tz) if_utc = pd.DatetimeIndex(values).tz_localize("UTC").tz_convert(tz) assert ts == if_utc[-1] assert (dti == if_wall).all() assert (ser == if_utc).all() dti_naive = pd.DatetimeIndex(values) ser_naive = pd.Series(values) res_dti = dti_naive.astype(dtype) res_ser = ser.astype(dtype) assert (res_dti == dti).all() assert (res_ser == ser).all() # astype from tzaware -> tznaive assert (dti.astype(dti_naive.dtype) == dti.tz_convert("UTC").tz_localize(None)).all() assert (ser_naive.astype(ser.dtype) == ser).all() ```
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BUG: Index and MultiIndex ops treating nan differently
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2020-12-21T19:56:31Z
2021-06-17T03:04:45Z
null
MEMBER
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. --- **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 ``Index.union`` treats ``nan`` differently than ``MultiIndex.union``. Same goes for intersection. ```python idx1 = Index([1, np.nan]) idx2 = Index([1, np.nan, 3]) idx1.union(idx2) idx1.intersection(idx2) mi1 = MultiIndex.from_arrays([[1, np.nan]]) mi2 = MultiIndex.from_arrays([[1, np.nan, 3]]) mi1.union(mi2) mi1.intersection(mi2) ``` Output: ``` Float64Index([1.0, 3.0, nan], dtype='float64') Float64Index([1.0, nan], dtype='float64') MultiIndex([(1.0,), (nan,), (nan,), (3.0,)], ) MultiIndex([(1.0,)], ) ``` #### Problem description Inconsistent behavior is a problem. Additionally if both MultiIndexes are *equal* nan is only returned once. When not matching nan is the desired output, we have to adjust for theses cases before checking for equality. #### Expected Output I am not quite sure what to expect, but taking the current behavior of merges into account, I think it would be more reasonable to return ``` MultiIndex([(1.0,), (nan,), (3.0,)], ) MultiIndex([(1.0,), (nan,)], ) ``` for the MultiIndex operations. Thoughts @jbrockmendel ? related to #38439 #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : c6b05c3ad771da775011647f66687a398e11c533 python : 3.8.6.final.0 python-bits : 64 OS : Linux OS-release : 5.4.0-58-generic Version : #64-Ubuntu SMP Wed Dec 9 08:16:25 UTC 2020 machine : x86_64 processor : x86_64 byteorder : little LC_ALL : None LANG : en_US.UTF-8 LOCALE : en_US.UTF-8 pandas : 1.3.0.dev0+129.gc6b05c3ad7 numpy : 1.19.2 pytz : 2020.1 dateutil : 2.8.1 pip : 20.2.3 setuptools : 49.6.0.post20201009 Cython : 0.29.21 pytest : 6.1.1 hypothesis : 5.37.1 sphinx : 3.2.1 blosc : None feather : None xlsxwriter : 1.3.7 lxml.etree : 4.5.2 html5lib : 1.1 pymysql : None psycopg2 : None jinja2 : 2.11.2 IPython : 7.18.1 pandas_datareader: None bs4 : 4.9.3 bottleneck : 1.3.2 fsspec : 0.8.3 fastparquet : 0.4.1 gcsfs : 0.7.1 matplotlib : 3.3.2 numexpr : 2.7.1 odfpy : None openpyxl : 3.0.5 pandas_gbq : None pyarrow : 2.0.0 pyxlsb : None s3fs : 0.4.2 scipy : 1.5.2 sqlalchemy : 1.3.20 tables : 3.6.1 tabulate : 0.8.7 xarray : 0.16.1 xlrd : 1.2.0 xlwt : 1.3.0 numba : 0.51.2 None Process finished with exit code 0 </details>
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Backport PR #38613 on branch 1.2.x (CI: move py38 slow to azure #38429)
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0
2020-12-21T20:02:56Z
2020-12-21T22:00:48Z
2020-12-21T22:00:47Z
NONE
null
Backport PR #38613: CI: move py38 slow to azure #38429
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2020-12-21T20:13:52Z
2021-05-22T15:43:12Z
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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 xref https://github.com/pandas-dev/pandas/pull/38416#discussion_r546736072
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Bug: assert_produces_warning(None) not raising AssertionError with warning
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2020-12-22T14:31:26Z
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- [x] closes #38620 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
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MDU6SXNzdWU3NzI0MzkxODc=
38,627
DOC: example for doing a reversed rolling window
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null
7
2020-12-21T20:23:18Z
2021-06-11T03:02:35Z
2021-06-11T03:02:35Z
CONTRIBUTOR
null
https://github.com/pandas-dev/pandas/issues/34226#issuecomment-690887774 is the example, should just add to window.rst also would be good to show using https://pandas.pydata.org/pandas-docs/dev/reference/api/pandas.api.indexers.FixedForwardWindowIndexer.html?highlight=forward#pandas.api.indexers.FixedForwardWindowIndexer
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772,549,621
MDExOlB1bGxSZXF1ZXN0NTQzNzk2NDc5
38,628
TST/REF: Delete duplicate hist tests
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1
2020-12-22T00:24:13Z
2020-12-22T01:21:35Z
2020-12-22T01:16:01Z
MEMBER
null
- [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` The tests deleted in this pr are also found starting here: https://github.com/pandas-dev/pandas/blob/e4f425dddda6b299fe5f5e05f18f128302f8604c/pandas/tests/plotting/test_hist_method.py#L26-L27
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772,580,830
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REF: collected dtypes.cast and construction simplifications
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1
2020-12-22T02:03:44Z
2020-12-22T15:31:17Z
2020-12-22T14:03:21Z
MEMBER
null
Also catch a warning in an io test that has been bugging me.
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TST/BUG: Unexpected warnings causing failures on master with fixed `assert_produces_warnings(None)` behavior
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2020-12-22T02:23:23Z
2021-06-11T18:30:09Z
null
MEMBER
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xref https://github.com/pandas-dev/pandas/pull/38626#issuecomment-749295555 Making sure `assert_produces_warning(None)` raises if a warning is emitted gives the following failures in master due to unexpected warnings: ``` FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-'UTC'] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-'US/Eastern'] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-'Asia/Tokyo'] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-'dateutil/US/Pacific'] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-'dateutil/Asia/Singapore'] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-'+01:15'] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-'-02:15'] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-'UTC+01:15'] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-'UTC-02:15'] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-tzutc()] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-tzlocal()] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-pytz.FixedOffset(300)] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-<UTC>] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-pytz.FixedOffset(-300)] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-datetime.timezone.utc] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-datetime.timezone(datetime.timedelta(seconds=3600))] FAILED pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array[DataFrame-datetime.timezone(datetime.timedelta(days=-1, seconds=82800), 'foo')] FAILED pandas/tests/frame/test_arithmetic.py::TestFrameArithmetic::test_binop_other[add-True-bool] FAILED pandas/tests/frame/test_arithmetic.py::TestFrameArithmetic::test_binop_other[mul-True-bool] FAILED pandas/tests/indexes/test_common.py::TestCommon::test_asi8_deprecation[int] FAILED pandas/tests/indexes/test_common.py::TestCommon::test_asi8_deprecation[uint] FAILED pandas/tests/indexes/test_common.py::TestCommon::test_asi8_deprecation[range] FAILED pandas/tests/indexes/test_common.py::TestCommon::test_asi8_deprecation[repeats] ``` Tests which have been xfailed in #38626 are: - [x] pandas/tests/arithmetic/test_timedelta64.py::TestTimedelta64ArithmeticUnsorted::test_tda_add_dt64_object_array - [ ] pandas/tests/frame/test_arithmetic.py::TestFrameArithmetic::test_binop_other - [ ] pandas/tests/indexes/test_common.py::TestCommon::test_asi8_deprecation - [ ] pandas/tests/io/parser/test_common.py::test_chunks_have_consistent_numerical_type
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MDExOlB1bGxSZXF1ZXN0NTQzODMzMjMx
38,631
DOC: capitalize NumPy as proper noun
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5
2020-12-22T02:54:32Z
2020-12-22T20:51:52Z
2020-12-22T20:39:45Z
CONTRIBUTOR
null
In a similar vein to https://github.com/pandas-dev/pandas/pull/37808 - [ ] closes #xxxx - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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Backport PR #37534 on branch 1.2.x (BUG: error raise when column contains percentage)
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2020-12-22T13:59:10Z
2020-12-22T15:16:43Z
2020-12-22T15:16:43Z
NONE
null
Backport PR #37534: BUG: error raise when column contains percentage
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2020-12-22T15:41:58Z
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Backport PR #37905: BUG: groupby resample different results with .agg() vs .mean()
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TYP: Extend typing to allow passing Index to_datetime
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3
2020-12-22T15:43:59Z
2021-04-14T07:14:01Z
2020-12-23T15:52:41Z
CONTRIBUTOR
null
ArrayConvertible should be able to accept Index or Series type as well This extends it to use AnyArrayLike instead of ArrayLike. - [ x] passes `black pandas` - [ x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
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ValueError: Only callable can be used as callback
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- [ ] I have searched the [[pandas] tag](https://stackoverflow.com/questions/tagged/pandas) on StackOverflow for similar questions. - [ ] I have asked my usage related question on [StackOverflow](https://stackoverflow.com). --- #### Question about pandas **Note**: If you'd still like to submit a question, 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 question. ```python # Your code here, if applicable #Importing Libraries import numpy as np import matplotlib.pyplot as plt import pandas as pd #Importing Dataset dataset = pd.read_csv("dataset.csv") ``` When I'm running the last line which imports m dataset it gives me error and I do not know how to resolve that. ERROR: dataset = pd.read_csv("C:/Users/saraj/OneDrive/Desktop/AI/dataset.csv") Traceback (most recent call last): File "<ipython-input-33-9a3340a25db3>", line 1, in <module> dataset = pd.read_csv("C:/Users/saraj/OneDrive/Desktop/AI/dataset.csv") File "C:\Users\saraj\anaconda3\envs\AI project\lib\site-packages\pandas\io\parsers.py", line 688, in read_csv return _read(filepath_or_buffer, kwds) File "C:\Users\saraj\anaconda3\envs\AI project\lib\site-packages\pandas\io\parsers.py", line 460, in _read data = parser.read(nrows) File "C:\Users\saraj\anaconda3\envs\AI project\lib\site-packages\pandas\io\parsers.py", line 1213, in read df = DataFrame(col_dict, columns=columns, index=index) File "C:\Users\saraj\anaconda3\envs\AI project\lib\site-packages\pandas\core\frame.py", line 468, in __init__ mgr = init_dict(data, index, columns, dtype=dtype) File "C:\Users\saraj\anaconda3\envs\AI project\lib\site-packages\pandas\core\internals\construction.py", line 259, in init_dict if missing.any() and not is_integer_dtype(dtype): File "C:\Users\saraj\anaconda3\envs\AI project\lib\site-packages\pandas\core\generic.py", line 11580, in logical_func return self._reduce( File "C:\Users\saraj\anaconda3\envs\AI project\lib\site-packages\pandas\core\series.py", line 4248, in _reduce with np.errstate(all="ignore"): File "C:\Users\saraj\anaconda3\envs\AI project\lib\site-packages\numpy\core\_ufunc_config.py", line 436, in __enter__ self.oldcall = seterrcall(self.call) File "C:\Users\saraj\anaconda3\envs\AI project\lib\site-packages\numpy\core\_ufunc_config.py", line 308, in seterrcall raise ValueError("Only callable can be used as callback") ValueError: Only callable can be used as callback
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CI: clean azure pipeline
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2020-12-22T17:33:56Z
2021-07-17T02:18:38Z
2021-07-17T02:18:38Z
MEMBER
null
We save about 2-3 min build time by using Azure's conda.
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REF: simplify logic in assert_produces_warning
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2020-12-22T17:43:02Z
2020-12-22T21:04:09Z
2020-12-22T21:04:05Z
MEMBER
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- [ ] closes #xxxx - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry Simplified logic in ``assert_produces_warning`` by extracting functions ``_assert_caught_expected_warning``, ``_assert_caught_no_extra_warnings`` and ``_is_unexpected_warning``.
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2020-12-22T17:50:03Z
2020-12-22T20:02:03Z
2020-12-22T19:22:19Z
MEMBER
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- [x] closes #38616 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` Since this is a regression on master I think a whatsnew is not necessary?
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Backport PR #38638 on branch 1.2.x (BUG: Fix regression in pandas merge)
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2020-12-22T21:02:15Z
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Backport PR #38638: BUG: Fix regression in pandas merge
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Backport PR #38533 on branch 1.2.x (BUG&TST: HTML formatting error in Styler.render() in rowspan attribute)
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0
2020-12-22T20:34:22Z
2020-12-22T22:21:32Z
2020-12-22T22:21:32Z
NONE
null
Backport PR #38533: BUG&TST: HTML formatting error in Styler.render() in rowspan attribute
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38,641
ENH/ERR: More consistent error reporting with invalid win_type in rolling
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4
2020-12-22T21:24:52Z
2021-01-04T17:50:11Z
2020-12-23T14:27:49Z
MEMBER
null
- [x] closes #15969 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry Also in-lining methods that were only used once and moving a BaseIndexer test that was using `win_type`
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38,642
REGR: GroupBy.indices no longer includes unobserved categories
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12
2020-12-22T21:32:49Z
2020-12-29T23:16:30Z
2020-12-29T23:16:30Z
MEMBER
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Does anybody know if this was an intentional change? (I don't directly find something about it in the whatsnew) ``` In [9]: pd.__version__ Out[9]: '1.0.5' In [10]: df = pd.DataFrame({"key": pd.Categorical(["b"]*5, categories=["a", "b", "c", "d"]), "col": range(5)}) In [11]: gb = df.groupby("key") In [12]: list(gb.indices) Out[12]: ['a', 'b', 'c', 'd'] ``` vs ``` In [1]: pd.__version__ Out[1]: '1.3.0.dev0+92.ga2d10ba88a' In [2]: df = pd.DataFrame({"key": pd.Categorical(["b"]*5, categories=["a", "b", "c", "d"]), "col": range(5)}) In [3]: gb = df.groupby("key") In [4]: list(gb.indices) Out[4]: ['b'] ``` This already changed in pandas 1.1, so not a recent change. The consequence of this is that iterating over `gb` vs iterating over `gb.indices` is not consistent anymore. cc @mroeschke @rhshadrach
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REF: use _should_compare to short-circuit set operations
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2020-12-22T21:49:32Z
2020-12-23T15:21:49Z
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BUG: Roundtrip with openpyxl and datetime precision
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MEMBER
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The test `tests.io.excel.test_writers.test_datetimes` fails with openpyxl (now the default, xref #35029): ``` path = "test.xlsx" datetimes = [ datetime(2013, 1, 13, 1, 2, 3), datetime(2013, 1, 13, 2, 45, 56), datetime(2013, 1, 13, 4, 29, 49), # <--- datetime(2013, 1, 13, 6, 13, 42), datetime(2013, 1, 13, 7, 57, 35), # <--- datetime(2013, 1, 13, 9, 41, 28), datetime(2013, 1, 13, 11, 25, 21), datetime(2013, 1, 13, 13, 9, 14), datetime(2013, 1, 13, 14, 53, 7), datetime(2013, 1, 13, 16, 37, 0), datetime(2013, 1, 13, 18, 20, 52), ] write_frame = DataFrame({"A": datetimes}) write_frame.to_excel(path, "Sheet1") read_frame = pd.read_excel(path, sheet_name="Sheet1", header=0, engine="openpyxl") tm.assert_series_equal(write_frame["A"], read_frame["A"]) ``` The highlighted lines give 2013-01-13 04:29:48.999999 2013-01-13 07:57:35.000001 With these two lines removed, the results are of the form e.g. `2013-01-13 11:25:21` and the test passes.
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MDU6SXNzdWU3NzMyOTU3MzQ=
38,645
REGR: passing dask arrays to Series or DataFrame
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23
2020-12-22T22:40:34Z
2021-07-20T12:17:05Z
2021-07-20T12:17:05Z
NONE
null
#### Code Sample, a copy-pastable example ```python import pandas as pd import dask.array as da a = da.ones((12,), chunks=4) s = pd.Series(a, index=range(12)) print(s.dtype) ``` #### Problem description This has been detected by `xarray`'s upstream-dev CI ([environment](https://github.com/pydata/xarray/runs/1592176067?check_suite_focus=true#step:5:1177)): with `1.1.3`, the `dtype` is `float64` while on `master` (installed from `scipy-wheels-nightly`) this became `object` (and the series / dataframe contains `dask` scalars). Was that change intentional? Poking around on the merged PR list, this might have been #38563 (not sure, though). To be clear, for us this only affects test code and since it would compute anyways we can easily work around this by computing the `dask` array before passing it to `pd.Series` or `pd.DataFrame`. See also pydata/xarray#4717. cc @TomAugspurger
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38,646
TST/BUG: _gen_two_subplots always adding subplot even with passed axis
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3
2020-12-22T23:07:24Z
2020-12-23T14:49:02Z
2020-12-23T14:34:06Z
MEMBER
null
- [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` `kwargs.get("ax", fig.add_subplot(211))` was always adding a subplot (since the argument to `.get()` will be evaluated even if it doesn't need to be used). Assuming the intended behavior was for `fig.add_subplot(211)` to be called only if `ax` is not passed. This change also gets rid of half of remaining `matplotlib` warnings from `pandas/tests/plotting/test_hist_method.py::TestSeriesPlots::test_hist_legacy`
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38,647
BUG: `DataFrame.corrwith` seems to be broken
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1
2020-12-22T23:13:33Z
2020-12-23T13:50:59Z
2020-12-23T13:50:59Z
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. --- **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 >>> import numpy as np; import pandas as pd >>> x = pd.DataFrame(np.random.randn(100, 3), columns=['A', 'B', 'C']) >>> y = pd.DataFrame(np.random.randn(100, 3), columns=['X', 'Y', 'Z']) >>> x.corrwith(y) A NaN B NaN C NaN D NaN E NaN F NaN dtype: float64 ``` #### Problem description I believe that this is a bug, and that if it is intended behavior, it should not be so. #### Expected Output Expected output is the cross-correlations between `self` and `other`: ``` >>> x.corrwith(y) A B C X -0.144123 -0.063604 0.008358 Y -0.097303 -0.032101 -0.127265 Z 0.032475 0.037129 0.082559 ``` #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : b5958ee1999e9aead1938c0bba2b674378807b3d python : 3.8.6.final.0 python-bits : 64 OS : Darwin OS-release : 20.2.0 Version : Darwin Kernel Version 20.2.0: Wed Dec 2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASE_X86_64 machine : x86_64 processor : i386 byteorder : little LC_ALL : None LANG : en_US.UTF-8 LOCALE : en_US.UTF-8 pandas : 1.1.5 numpy : 1.19.4 pytz : 2020.4 dateutil : 2.8.1 pip : 20.3.3 setuptools : 51.0.0 Cython : None pytest : 6.2.1 hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : None IPython : 7.19.0 pandas_datareader: None bs4 : None bottleneck : None fsspec : None fastparquet : None gcsfs : None matplotlib : None numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : 2.0.0 pytables : None pyxlsb : None s3fs : None scipy : 1.5.4 sqlalchemy : None tables : None tabulate : None xarray : None xlrd : None xlwt : None numba : 0.52.0 </details>
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REF: standardize get_indexer/get_indexer_non_unique code
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2020-12-22T23:22:11Z
2020-12-23T15:22:24Z
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BUG: Fix regression for groupby.indices in case of unused categories
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2020-12-22T23:58:34Z
2020-12-30T09:10:38Z
2020-12-29T23:16:30Z
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- [x] closes #38642 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` To show the unused we categories, we can dispatch back as we did before #36842. Since Categorical does not support nan, the reason for the switch does not exist in this case. I think handling unused categories in ``get_indexer_dict`` is not desirable, because it would introduce a lot of convolution for one corner case we could handle here pretty easily. Since we are only using ``indices`` in grouper only for categoricals, we do not have to worry about sorting as the test shows. cc @jorisvandenbossche @mroeschke
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ENH: improve partial key indexing performance
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2
2020-12-23T01:03:41Z
2021-03-07T19:52:17Z
null
CONTRIBUTOR
null
Indexing for entries in a series or dataframe with a multi-index has dramatically worse performance when using partial keys. For example, for a series with a 3-level multi-index, `series[x]` is dramatically slower than `series[(x,y,z)]`. Please see the session below for a minimal reproduction: ```In [1]: %paste from datetime import datetime import pandas as pd import numpy as np import timeit dates = pd.date_range('1997-01-01', '2020-12-31') cats = list('abcdefghijklmnop') multi = pd.MultiIndex.from_product([dates, cats, cats]) series = pd.Series(np.random.rand(len(multi)), index=multi) date = datetime(year=2020, month=1, day=1) # generate cache series.loc[(date, 'a', 'a')] repeats = 1000 len(series) ## -- End pasted text -- Out[1]: 2244096 In [2]: # Performance of indexing with full keys In [3]: timeit.timeit(lambda: series.loc[(date, 'a', 'a')], number=repeats) Out[3]: 0.08493588299825205 In [4]: # Performance of indexing with partial keys In [5]: timeit.timeit(lambda: series.loc[date], number=repeats) Out[5]: 4.771169905001443 ``` From looking at the code, it seems that `BaseMultiIndexCodesEngine` (pandas/_libs/index.pyx) essentially creates a hash table (a `libindex.UInt64Engine`) with entries for each full key. This makes full-key lookups fast. Meanwhile, for partial key lookups on a sorted index, `MultiIndex._get_level_indexer` will do two binary searches for each provided level of the key. Instead of a flattened-index approach (again, via `libindex.UInt64Engine`), it would be *excellent* if Pandas implemented nested indeces (nested hash tables, if you will) for this. This would have a small impact on the performance of full key lookups (current lookup complexity is O(1), new complexity would be O(number_of_levels)). However, partial key lookups would greatly benefit, going from O(log(size_of_series)) to O(number_of_levels_in_key).
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REF: use DatetimeArray._validate_setitem_value for DatetimeBlock._can_hold_element
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2020-12-23T02:18:44Z
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2020-12-23T04:36:59Z
2020-12-23T04:38:11Z
2020-12-23T04:38:11Z
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Trying to fix #38627
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2020-12-23T05:38:11Z
2020-12-23T20:16:29Z
2020-12-23T19:35:25Z
MEMBER
null
- [ ] 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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38,654
[BUG] Concat duplicates errors (or lack there of)
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13
2020-12-23T06:38:13Z
2021-01-12T23:04:12Z
2020-12-24T15:08:03Z
CONTRIBUTOR
null
- [ ] closes #6963 - [ ] xref #36263, #36290 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry @jreback So here is a basic proposal for making `concat` throw a more useful error when there are duplicate values on the index not being concatenated along. Below are some examples of how this error message is improved. I'm including a comparison to 1.2.0rc1, since it includes a pr which was supposed to change some of these errors to working cases, but those cases are extremely limited. That's why the first commit of this PR reverts that change. I haven't gone too far with this since it a) reverts a merged PR and b) affects the release candidate, so should be conservative. I would like to get feedback on whether I should proceed with this approach. My thinking right now is that a better error and revert should go into 1.2 – no behaviour change from 1.1, just better errors. A question of whether `pd.concat(..., join="inner")` means an intersection of indices (the current [and documented](https://pandas.pydata.org/docs/user_guide/merging.html#concatenating-objects) behaviour) or an actual inner join seems like something that could benefit from more discussion. If they are set operations, it should probably error on duplicates. If they are relational algebra operations, they should work with duplicates. It would probably also be useful to then add more arguments to `concat`, like `merge`s `validate`. # One dataframe has repeated column names (str) ```python pd.concat([ pd.DataFrame(np.ones((4, 4)), columns=list("aabc")), pd.DataFrame(np.ones((4, 3)), columns=list("abc")), ]) ``` This PR ```pytb InvalidIndexError: Reindexing only valid with uniquely valued Index objects ``` Pandas v1.1.5 ```pytb ValueError: Plan shapes are not aligned ``` pandas 1.2.0rc1 ```pytb ValueError: Plan shapes are not aligned ``` ------------------------- # One dataframe has repeated column names (int) ```python pd.concat([ # One dataframe has repeated column names pd.DataFrame(np.ones((4, 4)), columns=[1, 1, 2, 3]), pd.DataFrame(np.ones((4, 3)), columns=[1, 2, 3]), ) ``` This PR ```pytb InvalidIndexError: Reindexing only valid with uniquely valued Index objects ``` Pandas v1.1.5 ```pytb ValueError: Plan shapes are not aligned ``` pandas 1.2.0rc1 ```pytb ValueError: Plan shapes are not aligned ``` -------------------------- # Repeated columns (same amount) different column ordering ```python pd.concat([ pd.DataFrame(np.ones((2, 4)), columns=list("aabc")), pd.DataFrame(np.ones((2, 4)), columns=list("abca")), ]) ``` This PR: ```pytb InvalidIndexError: Reindexing only valid with uniquely valued Index objects ``` In pandas v1.15 ```pytb AssertionError: Number of manager items must equal union of block items # manager items: 3, # tot_items: 4 ``` In pandas v1.2.0rc1 ```pytb AssertionError: Number of manager items must equal union of block items # manager items: 3, # tot_items: 4 ``` ---------------------------- # Repeated columns of different values in each This point is what the reverted PR was trying to fix. This demonstrates that it didn't seem to fix what it set out to, and that the intended fix introduced strange behaviour anyways. To do this, I'll use the reverted test case. ```python # Test case from previous PR a_int = pd.DataFrame([1, 2, 3, 4], index=[0, 1, 1, 4], columns=["a"]) b_int = pd.DataFrame([6, 7, 8, 9], index=[0, 0, 1, 3], columns=["b"]) # Same, but with string indexes a_str = a_int.set_index(letters[a_int.index]) b_str = b_int.set_index(letters[b_int.index]) ``` ## Int index ```python pd.concat([a_int, b_int], axis=1) ``` This PR ```pytb InvalidIndexError: Reindexing only valid with uniquely valued Index objects ``` Pandas v1.1.5 ```pytb ValueError: Shape of passed values is (8, 2), indices imply (6, 2) ``` pandas 1.2.0rc1 ```pytb a b 0 1.0 6.0 0 1.0 7.0 1 2.0 8.0 1 3.0 8.0 3 NaN 9.0 4 4.0 NaN ``` <details> <summary> This behaviour is a bit strange </summary> First, the `concat` documentation [defines the options here as set operations, like intersect and union](https://pandas.pydata.org/docs/user_guide/merging.html#concatenating-objects). Is this a union, or is this an outer join? If these are joins, then inner joins only seem to work when they are equivalent to intersections: ```python >>> pd.concat([a_int, b_int], axis=1, join="inner") ... ValueError: Shape of passed values is (3, 2), indices imply (2, 2) >>> pd.merge(a_int, b_int, how="inner", left_index=True, right_index=True) a b 0 1 6 0 1 7 1 2 8 1 3 8 ``` </details> ## str index This is mostly just to show the behaviour in 1.2.0rc1 is different for string and int indices ```python pd.concat([a_str, b_str], axis=1) ``` This PR ```pytb InvalidIndexError: Reindexing only valid with uniquely valued Index objects ``` Pandas v1.1.5 ```pytb ValueError: Shape of passed values is (5, 2), indices imply (4, 2) ``` pandas 1.2.0rc1 ```pytb ValueError: Shape of passed values is (5, 2), indices imply (4, 2) ```
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38,655
BUG: multiple index dataframe with index names groupy rolling computing reture wrong index
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2020-12-23T07:43:07Z
2020-12-23T14:06:46Z
2020-12-23T14:06:46Z
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 ```python import pandas as pd arrays = [np.array(['bar', 'bar', 'baz', 'baz', 'foo', 'foo', 'qux', 'qux']), np.array(['one', 'two', 'one', 'two', 'one', 'two', 'one', 'two'])] df = pd.DataFrame(np.random.randn(8, 4), index=arrays) df.groupby(level=0).rolling(window=2).mean() ``` the result: ``` 0 1 2 3 bar bar one NaN NaN NaN NaN two -0.361421 -0.696686 -0.746137 -0.053621 baz baz one NaN NaN NaN NaN two 1.014213 0.575803 0.199990 -0.596995 foo foo one NaN NaN NaN NaN two -0.337821 0.921825 0.256034 -0.572588 qux qux one NaN NaN NaN NaN two -0.404824 -1.209763 0.581025 -0.741480 ``` ``` #now set the name to the index df.index.names=['a','b'] df.groupby(level=0).rolling(window=2).mean() ``` the result: ``` 0 1 2 3 a bar NaN NaN NaN NaN bar -0.361421 -0.696686 -0.746137 -0.053621 baz NaN NaN NaN NaN baz 1.014213 0.575803 0.199990 -0.596995 foo NaN NaN NaN NaN foo -0.337821 0.921825 0.256034 -0.572588 qux NaN NaN NaN NaN qux -0.404824 -1.209763 0.581025 -0.741480 ``` #### Problem description multiple index dataframe with index names groupy rolling computing reture wrong index #### Expected Output the return result should keep the original index #### Output of ``pd.show_versions()`` <details> In [36]: pd.show_versions() INSTALLED VERSIONS ------------------ commit : b5958ee1999e9aead1938c0bba2b674378807b3d python : 3.8.2.final.0 python-bits : 64 OS : Darwin OS-release : 19.6.0 Version : Darwin Kernel Version 19.6.0: Mon Aug 31 22:12:52 PDT 2020; root:xnu-6153.141.2~1/RELEASE_X86_64 machine : x86_64 processor : i386 byteorder : little LC_ALL : None LANG : zh_CN.UTF-8 LOCALE : zh_CN.UTF-8 pandas : 1.1.5 numpy : 1.19.4 pytz : 2020.4 dateutil : 2.8.1 pip : 20.2.4 setuptools : 50.3.2 Cython : None pytest : 6.2.0 hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : 2.11.2 IPython : 7.19.0 pandas_datareader: None bs4 : None bottleneck : None fsspec : None fastparquet : None gcsfs : None matplotlib : None numexpr : None odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pytables : None pyxlsb : None s3fs : None scipy : None sqlalchemy : 1.2.14 tables : None tabulate : None xarray : None xlrd : 1.1.0 xlwt : None numba : None </details>
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why not check the column order and type consistent before use ‘appand’ mode in to_csv or equivalent ops such as to_sql?
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2020-12-23T08:35:40Z
2021-03-27T01:38:56Z
2021-03-27T01:38:56Z
NONE
null
as the title say, when i append a column permutation of a exists dataframe to a exists(saved) csv file, the column permutation df not reordered by the exist header in csv file. one reason i can understand is that not all csv file have header in the first row, so this design seems reasonable, but for many cases, if the source code reordered for our append op which have header or table column, this may be more convenient. same problem to type.
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DOC/CI: fix class alias docstrings for sphinx 3.4 + unpin sphinx
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38,662
REF: collect dt64<->dt64tz astype in dtypes.cast
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0
2020-12-23T19:07:44Z
2020-12-23T23:49:52Z
2020-12-23T23:30:33Z
MEMBER
null
From here its straightforward to put the rest of Block._astype directly in astype_nansafe
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Develop pre check
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1
2020-12-23T19:20:30Z
2020-12-28T03:49:56Z
2020-12-27T12:19:34Z
CONTRIBUTOR
null
- [ x] closes #37957 - [ ] tests added / passed - [ x passes `black pandas` - [ x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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2020-12-23T19:36:27Z
2021-01-04T16:32:07Z
2020-12-23T21:40:20Z
MEMBER
null
- [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry `is_datetimelike` was just an internal check and can be in-lined `_on` can just be calculated once in the init
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774,023,033
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38,665
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0
2020-12-23T20:20:08Z
2020-12-29T18:25:51Z
2020-12-29T18:21:55Z
MEMBER
null
Aiming towards sharing more of this with Series and pd.array
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- [ ] closes #xxxx - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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BUG: read_excel does not use pyxlsb for xlsb files when engine is None
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2020-12-23T20:29:49Z
2020-12-27T23:54:54Z
2020-12-27T23:50:37Z
MEMBER
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From `pandas.tests.io.excel.test_excel_read_binary_via_read_excel` (currently only in #38571): ``` if read_ext == ".xlsb" and engine == "pyxlsb": with pytest.raises(IOError, match="File contains no valid workbook part"): with open("test1" + read_ext, "rb") as f: pd.read_excel(f) ``` This should instead determine that pyxlsb should be used when installed and no error should be raised.
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BUG: `scatter_matrix` raising with 2d axis passed
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2020-12-23T21:12:48Z
2020-12-23T23:59:26Z
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- [x] closes #16253 - [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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2020-12-23T22:37:19Z
2020-12-24T01:11:25Z
2020-12-24T01:11:24Z
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Backport PR #38657: DOC/CI: fix class alias docstrings for sphinx 3.4 + unpin sphinx
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2020-12-23T23:02:09Z
2020-12-24T01:11:40Z
2020-12-24T01:11:39Z
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null
Backport PR #38571: DEPR: Adjust read excel behavior for xlrd >= 2.0
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2020-12-24T02:27:43Z
2020-12-31T16:41:17Z
2020-12-31T16:41:17Z
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. - [ ] (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 import pandas as pd df = pd.DataFrame() df["col1"] = ["A", "A", "B", "B"] df["col2"] = pd.Categorical(["1", "2", "1", "1"], categories=["1", "2", "3"]) print(df.groupby("col1").col2.value_counts()) ``` #### Problem description A *value_counts* applied to the col2 Series: ```python df.col2.value_counts() ``` yields: ``` 1 3 2 1 3 0 Name: col2, dtype: int64 ``` Because col2 is categorical we get the 0 count for value 3, as desired. If we groupby col1 first ```python df.groupby("col1").col2.value_counts() ``` we get the following output: ``` col1 col2 A 1 1 2 1 B 1 2 Name: col2, dtype: int64 ``` #### Expected Output The expected output can be achieved with a workaround: ```python df.groupby("col1").col2.apply(pd.Series.value_counts) ``` which yields: ``` col1 A 2 1 1 1 3 0 B 1 2 3 0 2 0 Name: col2, dtype: int64 ``` #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : 67a3d4241ab84419856b84fc3ebc9abcbe66c6b3 python : 3.7.5.final.0 python-bits : 64 OS : Windows OS-release : 10 Version : 10.0.18362 machine : AMD64 processor : Intel64 Family 6 Model 158 Stepping 10, GenuineIntel byteorder : little LC_ALL : None LANG : None LOCALE : None.None pandas : 1.1.4 numpy : 1.19.1 pytz : 2019.3 dateutil : 2.8.0 pip : 20.2.3 setuptools : 41.2.0 Cython : 0.29.21 pytest : 5.3.5 hypothesis : None sphinx : 2.4.1 blosc : None feather : None xlsxwriter : None lxml.etree : 4.4.1 html5lib : 1.0.1 pymysql : 0.9.3 psycopg2 : None jinja2 : 2.10.3 IPython : 7.8.0 pandas_datareader: None bs4 : 4.8.2 bottleneck : None fsspec : 0.6.0 fastparquet : None gcsfs : None matplotlib : 3.1.3 numexpr : None odfpy : None openpyxl : 3.0.0 pandas_gbq : None pyarrow : 1.0.1 pytables : None pyxlsb : None s3fs : None scipy : 1.4.1 sqlalchemy : 1.3.10 tables : None tabulate : 0.8.6 xarray : None xlrd : 1.2.0 xlwt : None numba : None </details>
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BUG: dataframe.pivot()
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2020-12-24T07:13:12Z
2020-12-24T07:13:12Z
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- [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. --- **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 # official doc, https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.pivot.html # first code with a bug df = pd.DataFrame({ "lev1": [1, 1, 1, 2, 2, 2], "lev2": [1, 1, 2, 1, 1, 2], "lev3": [1, 2, 1, 2, 1, 2], "lev4": [1, 2, 3, 4, 5, 6], "values": [0, 1, 2, 3, 4, 5]}) df.pivot(index=["lev1", "lev2"], columns=["lev3"],values="values") # ValueError: Length of passed values is 6, index implies 2. # second code with a bug >>> month_stats_melt.columns [Out] Index(['stockcode', 'ym', 'variable', 'value'], dtype='object') >>> month_stats_melt.head() [Out] stockcode ym variable value 0 70001 2020/01 月初占比 0.078306 1 70001 2020/02 月初占比 0.082309 2 70001 2020/03 月初占比 0.083712 3 70001 2020/04 月初占比 0.086247 4 70001 2020/05 月初占比 0.087852 >>> month_stats_melt.pivot(index='stockcode',columns=['ym', 'variable'],values='value') # KeyError: 'Level ym not found' ``` #### Problem description # first bug ValueError Traceback (most recent call last) <ipython-input-86-9830d2bb712c> in <module> 5 "lev4": [1, 2, 3, 4, 5, 6], 6 "values": [0, 1, 2, 3, 4, 5]}) ----> 7 df.pivot(index=["lev1", "lev2"], columns=["lev3"],values="values") ~\anaconda3\lib\site-packages\pandas\core\frame.py in pivot(self, index, columns, values) 5921 from pandas.core.reshape.pivot import pivot 5922 -> 5923 return pivot(self, index=index, columns=columns, values=values) 5924 5925 _shared_docs[ ~\anaconda3\lib\site-packages\pandas\core\reshape\pivot.py in pivot(data, index, columns, values) 447 ) 448 else: --> 449 indexed = data._constructor_sliced(data[values].values, index=index) 450 return indexed.unstack(columns) 451 ~\anaconda3\lib\site-packages\pandas\core\series.py in __init__(self, data, index, dtype, name, copy, fastpath) 289 try: 290 if len(index) != len(data): --> 291 raise ValueError( 292 f"Length of passed values is {len(data)}, " 293 f"index implies {len(index)}." ValueError: Length of passed values is 6, index implies 2. # second bug ValueError Traceback (most recent call last) ~\anaconda3\lib\site-packages\pandas\core\indexes\multi.py in _get_level_number(self, level) 1294 try: -> 1295 level = self.names.index(level) 1296 except ValueError: ValueError: 'ym' is not in list During handling of the above exception, another exception occurred: KeyError Traceback (most recent call last) <ipython-input-21-42dbf3cc39b4> in <module> ----> 1 month_stats_pivot = month_stats_melt.pivot(index='stockcode',columns=['ym', 'variable'],values='value') 2 month_stats_pivot ~\anaconda3\lib\site-packages\pandas\core\frame.py in pivot(self, index, columns, values) 5921 from pandas.core.reshape.pivot import pivot 5922 -> 5923 return pivot(self, index=index, columns=columns, values=values) 5924 5925 _shared_docs[ ~\anaconda3\lib\site-packages\pandas\core\reshape\pivot.py in pivot(data, index, columns, values) 448 else: 449 indexed = data._constructor_sliced(data[values].values, index=index) --> 450 return indexed.unstack(columns) 451 452 ~\anaconda3\lib\site-packages\pandas\core\series.py in unstack(self, level, fill_value) 3548 from pandas.core.reshape.reshape import unstack 3549 -> 3550 return unstack(self, level, fill_value) 3551 3552 # ---------------------------------------------------------------------- ~\anaconda3\lib\site-packages\pandas\core\reshape\reshape.py in unstack(obj, level, fill_value) 396 # _unstack_multiple only handles MultiIndexes, 397 # and isn't needed for a single level --> 398 return _unstack_multiple(obj, level, fill_value=fill_value) 399 else: 400 level = level[0] ~\anaconda3\lib\site-packages\pandas\core\reshape\reshape.py in _unstack_multiple(data, clocs, fill_value) 318 index = data.index 319 --> 320 clocs = [index._get_level_number(i) for i in clocs] 321 322 rlocs = [i for i in range(index.nlevels) if i not in clocs] ~\anaconda3\lib\site-packages\pandas\core\reshape\reshape.py in <listcomp>(.0) 318 index = data.index 319 --> 320 clocs = [index._get_level_number(i) for i in clocs] 321 322 rlocs = [i for i in range(index.nlevels) if i not in clocs] ~\anaconda3\lib\site-packages\pandas\core\indexes\multi.py in _get_level_number(self, level) 1296 except ValueError: 1297 if not is_integer(level): -> 1298 raise KeyError(f"Level {level} not found") 1299 elif level < 0: 1300 level += self.nlevels KeyError: 'Level ym not found' #### Expected Output # first df.pivot(index=["lev1", "lev2"], columns=["lev3"],values="values") lev3 1 2 lev1 lev2 1 1 0.0 1.0 2 2.0 NaN 2 1 4.0 3.0 2 NaN 5.0 #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : None python : 3.8.3.final.0 python-bits : 64 OS : Windows OS-release : 10 machine : AMD64 processor : Intel64 Family 6 Model 142 Stepping 12, GenuineIntel byteorder : little LC_ALL : None LANG : None LOCALE : Chinese (Simplified)_China.936 pandas : 1.0.5 numpy : 1.18.5 pytz : 2020.1 dateutil : 2.8.1 pip : 20.1.1 setuptools : 49.2.0.post20200714 Cython : 0.29.21 pytest : 5.4.3 hypothesis : None sphinx : 3.1.2 blosc : None feather : None xlsxwriter : 1.2.9 lxml.etree : 4.5.2 html5lib : 1.1 pymysql : None psycopg2 : None jinja2 : 2.11.2 IPython : 7.16.1 pandas_datareader: None bs4 : 4.9.1 bottleneck : 1.3.2 fastparquet : None gcsfs : None lxml.etree : 4.5.2 matplotlib : 3.2.2 numexpr : 2.7.1 odfpy : None openpyxl : 3.0.4 pandas_gbq : None pyarrow : None pytables : None pytest : 5.4.3 pyxlsb : None s3fs : None scipy : 1.5.0 sqlalchemy : 1.3.18 tables : 3.6.1 tabulate : None xarray : None xlrd : 1.2.0 xlwt : 1.3.0 xlsxwriter : 1.2.9 numba : 0.50.1 </details>
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- [ ] closes #xxxx - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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MDExOlB1bGxSZXF1ZXN0NTQ1Mjc0MzY3
38,678
DOC: 1.2.0 release date
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1
2020-12-24T11:31:03Z
2020-12-26T11:25:56Z
2020-12-26T11:25:51Z
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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MDExOlB1bGxSZXF1ZXN0NTQ1MjkxMDYw
38,679
Revert "Deprecated casting an object-dtype index of datetime objects to DatetimeIndex in the Series constructor (23598)"
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5
2020-12-24T12:16:19Z
2020-12-26T10:03:57Z
2020-12-25T23:16:52Z
MEMBER
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This **partially** reverts commit 90a61350b1be7a200238212bd8d118a25a4d3d95. - [ ] closes #38182 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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38,680
CLN: Add typing for dtype argument in io/sql.py
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8
2020-12-24T14:55:29Z
2020-12-29T14:56:38Z
2020-12-29T14:08:23Z
CONTRIBUTOR
null
Follow up PR for #37546: - Added typing `Optional[DtypeArg]` for dtype arg in pandas/io, since those functions accept single values and dicts as `dtype` args - Added typing `Optional[Dtype]` for dtype arg in pandas/core, since those functions only accept a single value as `dtype` args - Added typing `Optional[NpDtype]` for dtype arg in pandas/core for functions that only accept numpy dtypes as `dtype` args - [ ] 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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MDExOlB1bGxSZXF1ZXN0NTQ1NDAwMTc1
38,681
BUG: DataFrame.rank with np.inf and np.nan
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4
2020-12-24T15:03:41Z
2020-12-30T21:57:24Z
2020-12-30T21:11:28Z
MEMBER
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- [x] closes #32593 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry Seemed like two distinct issues here - first `np.inf` wasn't distinguished from `np.nan` (https://github.com/pandas-dev/pandas/issues/32593#issuecomment-597376199). The changes to `skip_condition` logic handles that, but doesn't fix issue from OP. Rest of diff is to handle when `np.inf` and `np.nan` are both included.
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MDExOlB1bGxSZXF1ZXN0NTQ1NDAxNjA5
38,682
Backport PR #38654 on branch 1.2.x ([BUG] Concat duplicates errors (or lack there of))
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0
2020-12-24T15:08:49Z
2020-12-24T16:24:26Z
2020-12-24T16:24:26Z
NONE
null
Backport PR #38654: [BUG] Concat duplicates errors (or lack there of)
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38,683
REF: simplify coerce_to_target_dtype
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2020-12-24T15:24:26Z
2020-12-24T20:35:28Z
2020-12-24T20:32:09Z
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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38,684
Add match=msg to pytest.raises or convert to external_error_raised for modules in tests/plotting
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2
2020-12-24T16:07:43Z
2020-12-24T19:10:37Z
2020-12-24T19:03:02Z
MEMBER
null
This pull request xref #30999 to remove bare `pytest.raises`. It doesn't close that issue as I have only addressed files within `pandas/tests/plotting/`. Things I did that were not simple adding `match = msg` to `pytest.raises` or converting them to `tm.external_error_raised`: - In `pandas/plotting/_matplotlib/_core.py` I found two error messages somewhat unclear. I changed the error message in the `ValueError` raised by `_get_stacked_values` to be, imo, a little bit clearer. In addition, in the constructor for `PiePlot`, the previous error message for the `ValueError` was "None doesn't allow negative values" which I changed to "pie plot doesn't allow negative values" because I believe that was the original intent. - In `test_frame.py`, in the `test_errorbar_plot` method, the `pytest.raises` was allowing matplotlib to raise either a `TypeError` or a `ValueError`. I changed it to an `external_error_raised` but also specified it to be a `TypeError` because that is what it is, and I didn't see the reason it was allowed to be either error. - Also in `test_frame.py`, the test `test_invalid_xy_args` was pytest-parameterized to test two different kinds of errors: x not being a label or position, or the label being bad. I split it into two tests, calling the new test `test_bad_label` - Also in `test_frame.py`, the test `test_partially_invalid_plot_data` looped over a list with one element in it. I guessed that this was a remnant of an older test strategy that is no longer employed. I removed the list and made the kind of plot being tested more explicit. - In a couple of test modules I moved a few lines out of the context of the `pytest.raises` because they were setup lines that didn't raise the error: I wanted to make it clear exactly which pandas method was raising the error. I will note that another developer, [DylanBrdt](https://github.com/DylanBrdt) commented on the issue that they would address these files but they haven't been active on github since February. - [ ] xref #30999 - [ ] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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post-merge fixup
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2
2020-12-24T17:57:07Z
2020-12-24T19:05:46Z
2020-12-24T18:59:22Z
MEMBER
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#38674 combined with #38677 lead to a NameError this fixes
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CLN: algos.searchsorted
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38,687
Split up pandas/tests/io/pytables/test_store.py into smaller modules
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2
2020-12-24T19:20:20Z
2020-12-25T04:56:22Z
2020-12-25T04:56:22Z
MEMBER
null
pandas/tests/io/pytables/test_store.py is more than 5000 lines long, which is pretty long for a test module. It would be good to break it up into smaller, logical pieces, each in its own test module. Came out of PR 38609. OT: @moink love to split this file up: pandas/tests/io/pytables/test_store.py in a separate PR :-> _Originally posted by @jreback in https://github.com/pandas-dev/pandas/issues/38609#issuecomment-749256512_
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38,688
TST: implement tm.check_setitem_equivalents
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2020-12-24T21:49:55Z
2020-12-28T15:40:13Z
2020-12-28T15:27:03Z
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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REF: make pd._testing a directory
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2
2020-12-24T22:02:10Z
2020-12-28T01:19:04Z
2020-12-28T00:42:01Z
MEMBER
null
We've accumulated some other helpers outside of pd._testing that id like to move there (xref #38688). This is a good time to split the large file.
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ASV: Add benchmark for indexing with .loc for sorted/unsorted DatetimeIndex
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4
2020-12-25T00:05:41Z
2021-10-09T15:17:17Z
null
MEMBER
null
xref #17754, a benchmark should be added for indexing with .loc for sorted/unsorted `DatetimeIndex`. With a constructed `DatetimeIndex`, for example ```python dates = pd.date_range('2011-1-1', periods=500000, freq='min') index = np.random.choice(dates, 500000, replace=True) df = pd.DataFrame(index=index, data={'a': 1}) df_sorted = df.sort_index() ``` the behavior of interest to benchmark is ```python df.loc['2011-6-11'] ``` and ```python df_sorted.loc['2011-6-11'] ```
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BUG: Pandas pivot_table fails with columns and margin
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4
2020-12-25T03:30:32Z
2020-12-28T20:40:09Z
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NONE
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- [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. --- **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 arrays = [['bar', 'bar', 'foo', 'foo'], ['one', 'two', 'one', 'two'], ['A','A','B','B']] tuples = list(zip(*arrays)) index = pd.MultiIndex.from_tuples(tuples, names=['first', 'second', 'third']) values = np.array([[1,2,3,4],[5,6,7,8]]) df = pd.DataFrame(values.T, index=index, columns = ['0', '1']) # here comes the pivot_table, this one works, it has 'colums' df.pivot_table(index = ['first', 'second'], columns = 'third', aggfunc = 'sum') #this one works, it has 'margins' df.pivot_table(index = ['first', 'second'], aggfunc = 'sum', margins=True) #this one fails, it has both 'columns' and 'margins' df.pivot_table(index = ['first', 'second'], columns = 'third', aggfunc = 'sum', margins=True) ``` #### Problem description --------------------------------------------------------------------------- ```python-traceback KeyError Traceback (most recent call last) <ipython-input-5-a9c12a5808db> in <module> 13 14 #this one fails, it has both 'columns' and 'margins' ---> 15 df.pivot_table(index = ['first', 'second'], columns = 'third', aggfunc = 'sum', margins=True) ~\Anaconda3\lib\site-packages\pandas\core\frame.py in pivot_table(self, values, index, columns, aggfunc, fill_value, margins, dropna, margins_name, observed) 6068 from pandas.core.reshape.pivot import pivot_table 6069 -> 6070 return pivot_table( 6071 self, 6072 values=values, ~\Anaconda3\lib\site-packages\pandas\core\reshape\pivot.py in pivot_table(data, values, index, columns, aggfunc, fill_value, margins, dropna, margins_name, observed) 156 if dropna: 157 data = data[data.notna().all(axis=1)] --> 158 table = _add_margins( 159 table, 160 data, ~\Anaconda3\lib\site-packages\pandas\core\reshape\pivot.py in _add_margins(table, data, values, rows, cols, aggfunc, observed, margins_name, fill_value) 226 227 elif values: --> 228 marginal_result_set = _generate_marginal_results( 229 table, 230 data, ~\Anaconda3\lib\site-packages\pandas\core\reshape\pivot.py in _generate_marginal_results(table, data, values, rows, cols, aggfunc, observed, grand_margin, margins_name) 323 324 if len(rows) > 0: --> 325 margin = data[rows + values].groupby(rows, observed=observed).agg(aggfunc) 326 cat_axis = 1 327 ~\Anaconda3\lib\site-packages\pandas\core\frame.py in __getitem__(self, key) 2804 if is_iterator(key): 2805 key = list(key) -> 2806 indexer = self.loc._get_listlike_indexer(key, axis=1, raise_missing=True)[1] 2807 2808 # take() does not accept boolean indexers ~\Anaconda3\lib\site-packages\pandas\core\indexing.py in _get_listlike_indexer(self, key, axis, raise_missing) 1550 keyarr, indexer, new_indexer = ax._reindex_non_unique(keyarr) 1551 -> 1552 self._validate_read_indexer( 1553 keyarr, indexer, o._get_axis_number(axis), raise_missing=raise_missing 1554 ) ~\Anaconda3\lib\site-packages\pandas\core\indexing.py in _validate_read_indexer(self, key, indexer, axis, raise_missing) 1644 if not (self.name == "loc" and not raise_missing): 1645 not_found = list(set(key) - set(ax)) -> 1646 raise KeyError(f"{not_found} not in index") 1647 1648 # we skip the warning on Categorical/Interval KeyError: "['first', 'second'] not in index" ``` #### Expected Output No error thrown. #### Output of ``pd.show_versions()`` <details> [paste the output of ``pd.show_versions()`` here leaving a blank line after the details tag] INSTALLED VERSIONS ------------------ commit : None python : 3.8.3.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 : English_United States.1252 pandas : 1.0.5 numpy : 1.18.5 pytz : 2020.1 dateutil : 2.8.1 pip : 20.1.1 setuptools : 49.2.0.post20200714 Cython : 0.29.21 pytest : 5.4.3 hypothesis : None sphinx : 3.1.2 blosc : None feather : None xlsxwriter : 1.2.9 lxml.etree : 4.5.2 html5lib : 1.1 pymysql : None psycopg2 : None jinja2 : 2.11.2 IPython : 7.16.1 pandas_datareader: None bs4 : 4.9.1 bottleneck : 1.3.2 fastparquet : None gcsfs : None lxml.etree : 4.5.2 matplotlib : 3.2.2 numexpr : 2.7.1 odfpy : None openpyxl : 3.0.4 pandas_gbq : None pyarrow : None pytables : None pytest : 5.4.3 pyxlsb : None s3fs : None scipy : 1.5.0 sqlalchemy : 1.3.18 tables : 3.6.1 tabulate : None xarray : None xlrd : 1.2.0 xlwt : 1.3.0 xlsxwriter : 1.2.9 numba : 0.50.1 </details>
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MDU6SXNzdWU3NzQ2MjAyMjE=
38,692
API: setting np.nan into Series[bool]
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11
2020-12-25T04:06:58Z
2021-01-28T03:29:55Z
2021-01-28T03:29:55Z
MEMBER
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``` ser = pd.Series([True, False, True, False]) ser[0] = np.nan >>> ser 0 NaN 1 0.0 2 1.0 3 0.0 dtype: float64 ``` It would be more consistent (and would simplify the code) if this cast to object and did not convert True/False to 1.0/0.0. ATM we have 2 tests that such a change would break.
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TST: Inconsistent behavior of .replace() in Int64 series with NA
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4
2020-12-25T08:47:35Z
2020-12-28T14:55:49Z
2020-12-28T14:55:46Z
CONTRIBUTOR
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- [ ] closes #38267 - [ ] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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DOC add command to run pre-commit checks to pull request template
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14
2020-12-25T11:13:22Z
2021-01-10T18:30:49Z
2021-01-10T18:30:49Z
MEMBER
null
I think we could add ```bash passes `pre-commit run --from-ref=upstream/master --to-ref=HEAD --all-files` ``` to the pull request template (maybe it could even replace the current `black` and `flake8` ones). The file to change would be ``` .github/PULL_REQUEST_TEMPLATE.md ``` Some of the contributing guide may also need updating if it mentions the `flake8 --diff` command.
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38,695
TST: GH30999 Add match=msg to all pytest.raises in tests/generic/methods/test_sample.py
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1
2020-12-25T11:56:33Z
2020-12-27T22:11:51Z
2020-12-27T22:11:48Z
MEMBER
null
This pull request partially addresses xref #30999 to remove bare `pytest.raises` by adding `match=msg`. It doesn't close that issue as I have only addressed one test module: pandas/tests/generic/methods/test_sample.py The only other thing I did was move a few lines out of the `pytest.raises` context as they were setup lines that did not raise the error, in order to make it clear which pandas method was raising the error. - [ ] 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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9
2020-12-25T13:59:23Z
2021-01-04T04:45:57Z
2021-01-04T01:35:29Z
CONTRIBUTOR
null
- [ ] closes #38696 - [ ] tests added / passed - [ ] passes `pre-commit run --from-ref=upstream/master --to-ref=HEAD --all-files` - [ ] whatsnew entry
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TST: GH30999 Add match=msg to all pytest.raises in tests/indexes
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8
2020-12-25T14:51:32Z
2020-12-31T16:25:27Z
2020-12-31T16:25:22Z
MEMBER
null
This pull request partially addresses xref #30999 to remove bare pytest.raises by adding match=msg. It doesn't close that issue as I have only addressed modules in pandas/tests/indexes I made a few of the raised errors more specific types. There are two other changes that are a bit more complex but I will put specific comments on the code lines to explain those. - [ ] 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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BUG: Fix pd.json_normalize to not skip the first element of a generator input
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4
2020-12-25T14:57:06Z
2020-12-30T14:08:38Z
2020-12-30T14:08:34Z
CONTRIBUTOR
null
- [x] closes #35923 - [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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2020-12-25T23:18:02Z
2020-12-26T10:53:42Z
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Backport PR #38679: Revert "Deprecated casting an object-dtype index of datetime objects to DatetimeIndex in the Series constructor (23598)"
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- [x] closes #32259 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry The issue is that `is_lexsorted` only looks at whether the _codes_ are sorted - the order of the codes doesn't necessarily reflect the sorting of the index values, e.g. if the index is created from a `.groupby(sort=False)` operation (see the linked issue for an example). So, instead of `is_lexsorted`, users should use `is_monotonic_increasing`. There isn't an equivalent function to point them to for `lexsort_depth`, right?
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Backport PR #38678: DOC: 1.2.0 release date
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5
2020-12-26T13:32:15Z
2021-08-02T10:55:41Z
2021-08-02T10:54:40Z
MEMBER
null
It looks like jedi version 0.18.0 was released yesterday and broke the following tests: FAILED pandas/tests/arrays/categorical/test_warnings.py::TestCategoricalWarnings::test_tab_complete_warning FAILED pandas/tests/frame/test_api.py::TestDataFrameMisc::test_tab_complete_warning[DataFrame] FAILED pandas/tests/frame/test_api.py::TestDataFrameMisc::test_tab_complete_warning[Series] FAILED pandas/tests/indexes/test_base.py::TestIndex::test_tab_complete_warning FAILED pandas/tests/resample/test_resampler_grouper.py::test_tab_complete_ipython6_warning in the Linux py38_Locale pipeline only. I have looked into it and it seems that it is caused by this commit which is part of version 0.18.0 of Jedi https://github.com/davidhalter/jedi/commit/abb2250bf5b11cd0b0733949311df54ca0adbbf1 Ipython has a commit that I believe will fix the error: https://github.com/ipython/ipython/commit/dcd9dc90aee7e4c5c52ce44c18e7518934790612 but it's slated for inclusion in version 8.0 of ipython: https://github.com/ipython/ipython/issues/11816 (version 7.19.0 is the most recent release, on 2020-10-30) It's causing failures in all PRs that were submitted today (2020-12-26) starting with #38696 - [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. ---
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2020-12-26T15:27:24Z
2020-12-26T17:23:10Z
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TST: Add match=msg to all pytest.raises in pandas/tests/io/json
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1
2020-12-26T15:53:44Z
2020-12-27T22:57:19Z
2020-12-27T22:57:01Z
MEMBER
null
This pull request partially addresses xref #30999 to remove bare `pytest.raises` by adding `match=msg`. It doesn't close that issue as I have only addressed test modules in tje pandas/tests/io/json directory. I also moved a couple of lines out of the `pytest.raises` context to make clear which pandas method was raising the error. And I deleted a couple of unreachable asserts in tests. - [ ] 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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Backport PR #38704 on branch 1.2.x (DOC: Start v1.2.1 release notes)
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2020-12-26T17:23:22Z
2020-12-26T18:24:25Z
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NONE
null
Backport PR #38704: DOC: Start v1.2.1 release notes
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2020-12-26T20:10:28Z
2020-12-28T14:26:14Z
2020-12-28T14:26:10Z
CONTRIBUTOR
null
Registering converters by default on import is deprecated since #28722. The test did not fail as the subprocess call contains errors in the python code. Specifically, the code is in double and single quotes. This means that the python code passed to the subprocess call is never actually excecuted. Python in the subprocess is called to "excecute" a string. This is will simply finish with exit code 0 as there is nothing to do basically. Additonally, the test code contains a stray closing bracket at the end which would make the code fail if it was excecuted. - [ ] closes #xxxx - [ ] tests added / passed - [x] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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REGR: repr of stringified floats (e.g. "3.50") drop ending "0"
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2020-12-26T21:24:11Z
2020-12-29T03:18:49Z
2020-12-29T03:18:49Z
CONTRIBUTOR
null
Example: ```python >>> ser = pd.Series(["3.50"]) >>> ser 0 3.5 # wrong repr, should show 3.50 dtype: object >>> ser[0] '3.50' # this is ok ```
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2021-06-30T14:39:48Z
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MEMBER
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- [x] closes #38692 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry sits on top of #38688
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2020-12-27T00:39:30Z
2021-01-03T17:19:47Z
2021-01-03T16:48:19Z
MEMBER
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- [x] closes #35416 , closes #34252 - [x] tests added / passed - [x] passes `black pandas` - [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [x] whatsnew entry Note: Even though most of the reader options for read_excel only have 1 option, I think it is still useful to respect pandas.set_option. Also, if some people have older xlrd(e.g. 1.2.0) and don't have openpyxl, they can use options to force pandas to read xlsx files with xlrd. (this is possible now, but xlrd's maintainer has made it clear he doesn't support for things like this)
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2
2020-12-27T01:36:38Z
2020-12-29T02:16:54Z
2020-12-28T16:41:47Z
CONTRIBUTOR
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- [x] closes #36936 - [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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BUG: Pandas 1.2.0 not importing numpy
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2
2020-12-27T03:17:13Z
2020-12-27T03:30:16Z
2020-12-27T03:23:29Z
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. --- **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. Collecting pandas 222 Downloading http://*private-pypi-repo*/root/pypi/%2Bf/e03/386615b970b8b/pandas-1.2.0.tar.gz (5.4 MB) 223 Installing build dependencies: started 224 Installing build dependencies: finished with status 'done' 225 Getting requirements to build wheel: started 226 Getting requirements to build wheel: finished with status 'error' 227 ERROR: Command errored out with exit status 1: 228 command: /usr/local/bin/python /usr/local/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmpyzo8hnvu 229 cwd: /tmp/pip-install-wsvw3tn6/pandas_0107e3e2e0984808803b03b19130c9e4 230 Complete output (18 lines): 231 Traceback (most recent call last): 232 File "/usr/local/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py", line 280, in <module> 233 main() 234 File "/usr/local/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py", line 263, in main 235 json_out['return_val'] = hook(**hook_input['kwargs']) 236 File "/usr/local/lib/python3.6/site-packages/pip/_vendor/pep517/_in_process.py", line 114, in get_requires_for_build_wheel 237 return hook(config_settings) 238 File "/tmp/pip-build-env-isjnq9ut/overlay/lib/python3.6/site-packages/setuptools/build_meta.py", line 150, in get_requires_for_build_wheel 239 config_settings, requirements=['wheel']) 240 File "/tmp/pip-build-env-isjnq9ut/overlay/lib/python3.6/site-packages/setuptools/build_meta.py", line 130, in _get_build_requires 241 self.run_setup() 242 File "/tmp/pip-build-env-isjnq9ut/overlay/lib/python3.6/site-packages/setuptools/build_meta.py", line 254, in run_setup 243 self).run_setup(setup_script=setup_script) 244 File "/tmp/pip-build-env-isjnq9ut/overlay/lib/python3.6/site-packages/setuptools/build_meta.py", line 145, in run_setup 245 exec(compile(code, __file__, 'exec'), locals()) 246 File "setup.py", line 20, in <module> 247 import numpy 248 ModuleNotFoundError: No module named 'numpy' #### Problem description When I am downloading pandas 1.2.0 to build my docker image for my python project, I am getting the following error above. Numpy seems to be not importing for some reason. The excepted output would be what was when I building the image yesterday (before the release) I am using the following command to download my requirements: RUN pip install --no-cache-dir -r requirements.txt --extra-index-url $INDEX_URL --trusted-host $TRUSTED_HOST_URL And the requirements.txt is as follows: connexion python_dateutil setuptools Flask-Testing libmctwist >= 1.0.0 swagger-ui-bundle libmctwist requirements.txt contains: libinfinityd >= 1.1.0 azure-cosmos libinfinityd requirements.txt contains: pandas requests pyyaml six mysql-connector-python I've tried altering libinfinityd's requirements.txt to contain NumPy, at this point though, I think I'm going to revert to pandas 1.1.5 in the libinfinityd's requirements.txt #### Expected Output Collecting pandas 214 Downloading http://*private-pypi-repo*/root/pypi/%2Bf/f10/fc41ee3c75a47/pandas-1.1.5.tar.gz (5.2 MB) 215 Installing build dependencies: started 216 Installing build dependencies: still running... 217 Installing build dependencies: still running... 218 Installing build dependencies: still running... 219 Installing build dependencies: finished with status 'done' 220 Getting requirements to build wheel: started 221 Getting requirements to build wheel: still running... 222 Getting requirements to build wheel: finished with status 'done' 223 Preparing wheel metadata: started 224 Preparing wheel metadata: finished with status 'done' 225 WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)",)': /simple/pytz/
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MDExOlB1bGxSZXF1ZXN0NTQ1NzYzMDAx
38,713
DOC: fix link redirect to NumFOCUS
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0
2020-12-27T04:37:16Z
2020-12-27T15:37:08Z
2020-12-27T12:53:51Z
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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MDU6SXNzdWU3NzQ5ODgzNzg=
38,714
REGR: to_csv problems with zip compression and large dataframes
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8
2020-12-27T06:53:59Z
2020-12-29T00:05:07Z
2020-12-29T00:05:07Z
NONE
null
#### Code Sample, a copy-pastable example ```python import pandas as pd import io f = io.BytesIO() d = pd.DataFrame({'a':[1]*5000}) d.to_csv(f, compression='zip') f.seek(0) pd.read_csv(f, compression='zip') ``` #### Problem description Writing large (over 1163 rows) dataframes to csv with zip compression (inferred or explicit; to file or io.BytesIO) creates a corrupted zip file. ValueError: Multiple files found in ZIP file. Only one file per ZIP: ['zip', 'zip', 'zip', 'zip', 'zip'] #### Output of ``pd.show_versions()`` <details> INSTALLED VERSIONS ------------------ commit : 3e89b4c4b1580aa890023fc550774e63d499da25 python : 3.8.6.final.0 python-bits : 64 OS : Windows OS-release : 10 Version : 10.0.19041 machine : AMD64 processor : Intel64 Family 6 Model 60 Stepping 3, GenuineIntel byteorder : little LC_ALL : None LANG : None LOCALE : Polish_Poland.1250 pandas : 1.2.0 numpy : 1.19.3 pytz : 2020.5 dateutil : 2.8.1 pip : 20.3.3 setuptools : 51.1.0.post20201221 Cython : None pytest : 6.2.1 hypothesis : None sphinx : None blosc : None feather : None xlsxwriter : None lxml.etree : None html5lib : None pymysql : None psycopg2 : None jinja2 : 2.11.2 IPython : 7.19.0 pandas_datareader: None bs4 : None bottleneck : 1.3.2 fsspec : 0.8.5 fastparquet : None gcsfs : None matplotlib : 3.3.3 numexpr : 2.7.1 odfpy : None openpyxl : None pandas_gbq : None pyarrow : None pyxlsb : None s3fs : None scipy : 1.5.4 sqlalchemy : None tables : None tabulate : None xarray : 0.16.2 xlrd : None xlwt : None numba : 0.52.0 </details>
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MDExOlB1bGxSZXF1ZXN0NTQ1Nzc3Nzgw
38,715
CI: pin jedi version<0.18.0
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2
2020-12-27T08:05:17Z
2020-12-27T17:55:01Z
2020-12-27T10:51:12Z
MEMBER
null
... so CI jobs pass. xref #38703. OP should be kept open until upstream fix comes through.
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38,716
Backport PR #38715 on branch 1.2.x (CI: pin jedi version<0.18.0)
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0
2020-12-27T10:53:32Z
2020-12-27T12:55:06Z
2020-12-27T12:55:05Z
NONE
null
Backport PR #38715: CI: pin jedi version<0.18.0
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775,018,980
MDExOlB1bGxSZXF1ZXN0NTQ1Nzk0MTg3
38,717
Slicing columns with mixed types <str>,<int> fails with ValueError #20975
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3
2020-12-27T11:12:59Z
2020-12-27T22:55:04Z
2020-12-27T22:55:00Z
CONTRIBUTOR
null
- [ ] closes #20975 - [x] tests added / passed - [ ] passes `black pandas` - [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff` - [ ] whatsnew entry
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38,718
Change tests of casting an interval range index from float to int to reflect current behaviour
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2
2020-12-27T13:23:52Z
2020-12-30T03:27:23Z
2020-12-30T03:27:23Z
MEMBER
null
This is to address an issue I came across in PR #38697 where there is a test, `test_subtype_integer_errors`, in pandas/tests/indexes/interval/test_astype.py marked as failing because it is not raising `ValueErrors` when casting an interval range index from float to int. My reading of #15832 is that it is unnecessary to raise a `ValueError` in this case. As I wrote in the comments to #38697: The question is, as a user of pandas, if you had an interval range such as [(0.0, 0.25], (0.25, 0.5], (0.5, 0.75], (0.75, 1.0], (1.0, 1.25], (1.25, 1.5], (1.5, 1.75], (1.75, 2.0], (2.0, 2.25], (2.25, 2.5]], and you cast it to int, what would you want or expect? The old (failing) version of the test said you expect a ValueError. I am saying you expect [(0, 0], (0, 0], (0, 0], (0, 1], (1, 1], (1, 1], (1, 1], (1, 2], (2, 2], (2, 2]] which, as I said, looks not that useful as an IntervalIndex, but is not wrong either. So what I plan to do is delete two `pytest.raises` calls in `test_subtype_integer_errors` but also add a test to ensure that casting an interval range from float to int works as expected. > > Your logic makes sense to me, but I'd defer to someone with more experience on how we handle `IntervalIndex`. > > If being removed from this test, we definitely want to make sure this specific casting behavior is being tested somewhere. To keep this pr simple and easier to merge, I'd suggest reverting modification of this test, then making a followup pr to clean up this test and add tests for any untested casting behavior. > > _Originally posted by @mzeitlin11 in https://github.com/pandas-dev/pandas/pull/38697#discussion_r549023944_
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