pandas-dev / pandas Public

65 Pull requests merged by 20 people

• BUG: df.iloc[:, 0] = df.iloc[::-1, 0] not setting inplace for EAs

  #45352 merged Mar 1, 2022

• ENH: Rolling window with step size (GH-15354)

  #45765 merged Feb 28, 2022

• DOC: Remove computation.rst in favor of better docstrings

  #46170 merged Feb 28, 2022

• REF: implement _reconstruct_ea_result, _ea_to_cython_values

  #46172 merged Feb 28, 2022

• CI: Remove testing pyarrow 6

  #46183 merged Feb 28, 2022

• PERF: avoid cast in algos.rank

  #46175 merged Feb 28, 2022

• PERF: faster groupby diff

  #45575 merged Feb 28, 2022

• ENH: Improve error message when rolling over NaT value

  #46087 merged Feb 28, 2022

• TYP: offsets.pyi

  #45331 merged Feb 27, 2022

• BUG: BooleanArray match non-masked behavior div/pow/mod

  #46063 merged Feb 27, 2022

• BUG: Fix some cases of groupby(...).transform with dropna=True

  #45953 merged Feb 27, 2022

• Bug fix - Astype Timedelta64[ns] fails when np.nan is included

  #45965 merged Feb 27, 2022

• BUG: fix parquet roundtrip for Interval dtype with datetime64[ns] subtype

  #46034 merged Feb 27, 2022

• BUG/REF: Use lru_cache instead of NUMBA_FUNC_CACHE

  #46086 merged Feb 27, 2022

• Typeinterval part2

  #46098 merged Feb 27, 2022

• TYP: groupby, sorting

  #46133 merged Feb 27, 2022

• REF: combine masked_cummin_max, cummin_max

  #46142 merged Feb 27, 2022

• Manual Backport PR #46143 on branch 1.4.x (CI: Merge datamanager job into posix)

  #46165 merged Feb 27, 2022

• ENH: allow concat of Styler objects

  #46105 merged Feb 27, 2022

• ENH: IntegerArray bitwise operations

  #46104 merged Feb 27, 2022

• Update test_fillna.py

  #46161 merged Feb 27, 2022

• Backport PR #46055 on branch 1.4.x (DOC: Add "build C extensions" note)

  #46168 merged Feb 27, 2022

• CLN: Remove Categorical.itemsize

  #46137 merged Feb 27, 2022

• DOC: Add "build C extensions" note

  #46055 merged Feb 27, 2022

• PERF: support mask in libgroupby.group_nth

  #46163 merged Feb 27, 2022

• TST: Split & parameterize

  #46091 merged Feb 27, 2022

• TST: Don't mark all plotting tests as slow

  #46003 merged Feb 27, 2022

• PERF: MultiIndex slicing

  #46040 merged Feb 27, 2022

• CI: Run sdist build less often

  #44731 merged Feb 27, 2022

• BUG: .transform(...) with "first" and "last" fail when axis=1

  #46074 merged Feb 26, 2022

• REF: implement ArrowExtensionArray base class

  #46102 merged Feb 26, 2022

• Adding tests for IntervalArray.unique() for DateTimeArrays with time zones

  #46153 merged Feb 26, 2022

• BUG: remove usage of _constructor._get_axis_number (fix when _constructor properties return callables)

  #46018 merged Feb 26, 2022

• REF/TST: misplaced hashtable tests, rename HashTable.map map_keys_to_values

  #46106 merged Feb 26, 2022

• PERF: support mask in group_last

  #46107 merged Feb 26, 2022

• PERF: avoid unnecessary copies factorize

  #46109 merged Feb 26, 2022

• REF: use fused types for mode

  #46089 merged Feb 26, 2022

• BUG: Multiindex.equals not commutative for ea dtype

  #46047 merged Feb 26, 2022

• TYP: assorted

  #46121 merged Feb 26, 2022

• Typeinterval part1

  #46080 merged Feb 26, 2022

• BUG: read_csv not respecting converter in all cases for index col

  #46053 merged Feb 26, 2022

• REF: remove no-longer-needed _validate_numeric_casting

  #46131 merged Feb 26, 2022

• DEPR: non-keyword args in EA.argsort

  #46134 merged Feb 26, 2022

• Backport PR #46118 on branch 1.4.x (CI: Align MacOS dependencies with other builds)

  #46158 merged Feb 26, 2022

• Backport PR #45902 on branch 1.4.x (Use Mamba in Azure CI)

  #46159 merged Feb 26, 2022

• Backport PR #46124 on branch 1.4.x (DOC: Improve options.rst)

  #46160 merged Feb 26, 2022

• Backport PR #46057 on branch 1.4.x (bug: styler latex longtable column count)

  #46157 merged Feb 26, 2022

• DOC: Improve options.rst

  #46124 merged Feb 26, 2022

• REF: isinstance(x, int) -> is_integer(x)

  #46119 merged Feb 26, 2022

• DOC: Remove old note about default unit

  #46103 merged Feb 26, 2022

• BUG: PandasArray._quantile when empty

  #46110 merged Feb 26, 2022

• Inconsistent handling of duplicate axes + mixed dtypes in DataFrame.where #25399

  #46139 merged Feb 26, 2022

• Use Mamba in Azure CI

  #45902 merged Feb 26, 2022

• CI: Merge datamanager job into posix

  #46143 merged Feb 26, 2022

• CI: Align MacOS dependencies with other builds

  #46118 merged Feb 26, 2022

• bug: styler latex longtable column count

  #46057 merged Feb 26, 2022

• CLN/TYP: remove unused

  #46151 merged Feb 26, 2022

• CI/TST: Fix xfail(strict=False) condition

  #46150 merged Feb 25, 2022

• REF: share hashtable_func_helper code

  #46090 merged Feb 24, 2022

• TST: misplaced array tests

  #46136 merged Feb 24, 2022

• DOC: added "How to read these guides" section to User Guide page (#39130)

  #46120 merged Feb 23, 2022

• DOC: Fixed issue 46125

  #46130 merged Feb 23, 2022

• Manual Backport PR #46059 on branch 1.4.x (CI: Test various Pyarrow version on Linux)

  #46097 merged Feb 23, 2022

• PERF: join empty frame

  #46015 merged Feb 22, 2022

• TST: Parameterize tests

  #46108 merged Feb 22, 2022

18 Pull requests opened by 12 people

• DOC: Add note for tail/head when n is larger then length of DataFrame

  #46114 opened Feb 22, 2022

• [WIP] perf improvements for strftime

  #46116 opened Feb 22, 2022

• Bug fix - extension array with 2d datetime64

  #46140 opened Feb 24, 2022

• [WIP] DataFrame exchange protocol

  #46141 opened Feb 24, 2022

• BUG: MultiIndex slicing with negative step

  #46156 opened Feb 25, 2022

• Bug fix - GroupBy.describe produces inconsistent results for empty datasets

  #46162 opened Feb 26, 2022

• Enable server side cursors

  #46166 opened Feb 27, 2022

• Bug fix - rename dataframe reset index

  #46167 opened Feb 27, 2022

• TYP: remove NaTType as possible result of Timestamp and Timedelta constructor

  #46171 opened Feb 27, 2022

• PERF: faster corrwith method for pearson and spearman correlation when other is a Series and axis = 0

  #46174 opened Feb 28, 2022

• DOC: Move general utility functions to better locations

  #46177 opened Feb 28, 2022

• BUG: styler.concat should raise when index nlevels are incompatible

  #46180 opened Feb 28, 2022

• CLN: assorted

  #46181 opened Feb 28, 2022

• BUG: groupby.min with UInt64 and empty group

  #46182 opened Feb 28, 2022

• ENH: make `Styler.concat` compatible with `to_latex` output render

  #46186 opened Feb 28, 2022

• DEPR: treating object-dtype blocks as bool_only

  #46188 opened Feb 28, 2022

• TST: add test for correct behaviour of multiIndex loc with splice

  #46190 opened Mar 1, 2022

• CLN: rolling step followups

  #46191 opened Mar 1, 2022

33 Issues closed by 10 people

• Rolling window with step size

  #15354 closed Feb 28, 2022

• QST: Strange unconsistent error ValueError: Unknown format code 'd' for object of type 'float' when using pandas.read_csv()

  #46184 closed Feb 28, 2022

• PERF: groupby-diff

  #16706 closed Feb 28, 2022

• BUG: `astype("timedelta64[ns]")` fails when `np.nan` is included

  #45798 closed Feb 27, 2022

• BUG: cannot read back columns of dtype interval[datetime64[ns]] from parquet file or pyarrow table

  #45881 closed Feb 27, 2022

• ENH: Add option to display dtypes below column headers

  #43875 closed Feb 27, 2022

• ENH: Support logical and/or (bitwise ops) for nullable IntegerArray

  #34463 closed Feb 27, 2022

• EA: fillna should accept same type

  #32414 closed Feb 27, 2022

• BUG: Unable to install Pandas in Mac M1 and Python 3.6.15 and MacOs Monterey

  #46169 closed Feb 27, 2022

• BUG: dataframe/series.isna().sum() overcounts nan values.

  #46145 closed Feb 27, 2022

• QST: [contributor question] how to run tests against local repo with Docker development environment

  #45914 closed Feb 27, 2022

• CI: Inconsistencies in the CI tests

  #29685 closed Feb 27, 2022

• CI/COMPAT: PyUnicode_FromUnicode is deprecated failure on 3.9 CI

  #34881 closed Feb 27, 2022

• CI: Re-starting on Github Actions Posix build re-runs all of them

  #42307 closed Feb 27, 2022

• CI: Dateutil broke CI

  #42961 closed Feb 27, 2022

• CI: No single CPU builds for pytest.mark.single test?

  #44584 closed Feb 27, 2022

• CI: Run Sdist less often(only on master/nightlies and PRs labeled build)

  #43745 closed Feb 27, 2022

• Multiindex Equals Not Commutative

  #46026 closed Feb 26, 2022

• BUG: converters of dtype is ignored in read_csv if related to index column

  #40589 closed Feb 26, 2022

• BUG: to_hdf hangs without error messag

  #46148 closed Feb 26, 2022

• Inconsistent handling of duplicate axes + mixed dtypes in `DataFrame.where`

  #25399 closed Feb 26, 2022

• BUG: to_latex compute wrong multicolumn size in longtable environment with column_format set

  #46037 closed Feb 26, 2022

• ENH: Add typing support

  #46155 closed Feb 25, 2022

• BUG: segfault when using read_csv and repeatedly accessing / renaming DataFrame.columns

  #46146 closed Feb 25, 2022

• BUG: dataframe returned by groupby.apply() is missing outer group indices if row indices of returned dataframe are identical to those of the input dataframe

  #46041 closed Feb 24, 2022

• DOC: "getting started" under "coming from SQL" assumes you're using a notebook

  #39130 closed Feb 23, 2022

• A question about the documentation

  #46125 closed Feb 23, 2022

• ENH: Compatibility between `isin()` methods and python-holidays

  #46123 closed Feb 23, 2022

• BUILD: openpyxl and xlsxwriter should be installed while installing pandas

  #46127 closed Feb 23, 2022

• BUG: is_integer_dtype does not consider Int16Dtype as an integer dtype

  #46115 closed Feb 22, 2022

• ENH: Update to_gbq method in gbq.py to be equal to pandas_gbq.

  #46117 closed Feb 22, 2022

• BUG: DataFrame.to_json does not take into account of time zone naive Timestamps

  #46052 closed Feb 22, 2022

• DOC: Incomplete documentation for get_dummies

  #46099 closed Feb 22, 2022

21 Issues opened by 20 people

• BUG: KeyError in a multiindex with Timestamps

  #46189 opened Mar 1, 2022

• BUG: AttributeError: 'TextFileReader' object has no attribute 'f'

  #46187 opened Feb 28, 2022

• BUG: df.A raises AttributeError if column index is of dtype string

  #46185 opened Feb 28, 2022

• BUG: Series.add(DataFrame) fails to align

  #46179 opened Feb 28, 2022

• BUG: Merge error when merge col is int64 and Int64

  #46178 opened Feb 28, 2022

• getsizeof usage for memory utilization estimation is incompatible with PyPy

  #46176 opened Feb 28, 2022

• Missing keys in a selector list are matched to None-labeled entries of MultiIndex

  #46173 opened Feb 27, 2022

• BUG: Index.equals different behavior for EA vs non-EA types

  #46164 opened Feb 27, 2022

• BUG: Converting `pd.Timestamp.min` to equivalent pydatetime object and back raises `OutOfBoundsDatetime`

  #46154 opened Feb 25, 2022

• BUG: Styler cannot accept semicolon in CSS val

  #46152 opened Feb 25, 2022

• PERF: Series.fillna (that is part of DataFrame) with inplace=True high memory usage / memory leaking

  #46149 opened Feb 25, 2022

• ENH: Enumeration grouping

  #46147 opened Feb 25, 2022

• CI/TST: Flaky test `test_union_different_types`

  #46144 opened Feb 25, 2022

• BUG: NotImplementedError: Cannot apply ufunc <ufunc 'hyp2f1'> to mixed DataFrame and Series inputs.

  #46138 opened Feb 24, 2022

• BUG: rolling with axis=1, win_type=, and center=True raises ValueError

  #46135 opened Feb 23, 2022

• BUG: rolling aggregate() with a list of functions along axis 1 raises ValueError

  #46132 opened Feb 23, 2022

• BUG: df.plot(kind='barh') does not show xlabel

  #46129 opened Feb 23, 2022

• ENH: Conversion function errors kwarg callback function

  #46126 opened Feb 23, 2022

• ENH: Add option to specify table captions to be below tables in DataFrame.to_latex

  #46122 opened Feb 23, 2022

• BUG: DataFrame.to_json does not take into account of time zone naive Timestamps

  #46112 opened Feb 22, 2022

• BUG: cannot use registered float16 extension dtype

  #46111 opened Feb 22, 2022

87 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• ENH: pd.read_html argument to extract hrefs along with text from cells

  #45973 commented on Feb 28, 2022 • 14 new comments

• Use ccache in GHA pipelines

  #45701 commented on Feb 28, 2022 • 13 new comments

• BUG: Fix aligning a DataFrame with a Series with MultiIndex #46001

  #46058 commented on Feb 28, 2022 • 12 new comments

• Fix scatter norm keyword

  #45966 commented on Feb 27, 2022 • 10 new comments

• ENH: Add large file support for read_xml

  #45724 commented on Mar 1, 2022 • 9 new comments

• Add missing __finalize__ calls in indexers/iterators

  #46101 commented on Feb 28, 2022 • 8 new comments

• Adding (Insert or update if key exists) option to .to_sql #14553

  #29636 commented on Feb 28, 2022 • 6 new comments

• BUG: pd.concat produces frames with inconsistent order when concating the ones with categorical indices

  #46019 commented on Feb 28, 2022 • 6 new comments

• REF: Enhance consistency on Styler methods

  #45780 commented on Feb 28, 2022 • 5 new comments

• CI: Test on Cython 3.0 on numpydev

  #46029 commented on Mar 1, 2022 • 5 new comments

• API: distinguish NA vs NaN in floating dtypes

  #32265 commented on Feb 23, 2022 • 4 new comments

• DEPR: `null_color` since `color` used everywhere else

  #45907 commented on Feb 26, 2022 • 4 new comments

• Bug/45740 stack_multi_columns extension array downcast

  #46095 commented on Feb 27, 2022 • 4 new comments

• PERF: strftime is slow

  #44764 commented on Feb 22, 2022 • 3 new comments

• Maybe buggy nullable integer floor division by 0

  #30188 commented on Feb 22, 2022 • 3 new comments

• ENH: Add `lsuffix=`/`rsuffix=` kwargs to `pd.merge()` and `df.merge()`

  #46046 commented on Feb 25, 2022 • 3 new comments

• BUG: `len(df.groupby(..., dropna=False))` raises ValueError: Categorical categories cannot be null

  #35202 commented on Mar 1, 2022 • 3 new comments

• Bugfix for constructing empty Series, with index, using ExtensionDtyp…

  #44615 commented on Mar 1, 2022 • 3 new comments

• Add 'color' and 'size' to arguments

  #44856 commented on Feb 28, 2022 • 3 new comments

• Lose the index before 'na_value' assignment in 'to_numpy'

  #45775 commented on Feb 26, 2022 • 3 new comments

• ENH: Add defaultdict support for dtype in read_csv

  #46051 commented on Feb 27, 2022 • 3 new comments

• DOC: tail works even if n > length of DataFrame

  #46079 commented on Feb 22, 2022 • 2 new comments

• DOC: Development with pip installation needs to say to use python 3.8

  #45472 commented on Feb 22, 2022 • 2 new comments

• BUG: DataFrame.explode incomplete support on multiple columns

  #46084 commented on Feb 27, 2022 • 2 new comments

• REGR: Bar plot from Series with IntervalIndex fails in pandas 1.2.0

  #38969 commented on Feb 27, 2022 • 2 new comments

• BUG: Reading a Boolean column with "blanks" from an Excel file raises an absurd error

  #45903 commented on Feb 28, 2022 • 2 new comments

• BUG: df.plot.barh() broken from 1.1.5 to 1.2 under specific circumstances

  #39126 commented on Feb 28, 2022 • 2 new comments

• BUG: concat with empty dataframe with columns passed and nonempty dataframe coerces dtype to object

  #45637 commented on Feb 28, 2022 • 2 new comments

• DEPR: DataFrameGroupBy numeric_only defaulting to True

  #46072 commented on Feb 28, 2022 • 2 new comments

• BUG: Construction of Series with NAs and interval-of-datetime dtype raises error

  #41805 commented on Feb 28, 2022 • 2 new comments

• ENH: conditional merge - initial concept

  #42964 commented on Feb 24, 2022 • 2 new comments

• BUG: clip raising with na series bounds for datetimes or ea int

  #45161 commented on Feb 27, 2022 • 2 new comments

• ENH: exclude html table border w/False value

  #45943 commented on Feb 27, 2022 • 2 new comments

• Bug fix - Integer overflow in Series.astype('datetime64[D]')

  #46021 commented on Feb 27, 2022 • 2 new comments

• BUG: error in read_excel with some ods files #45598

  #46050 commented on Feb 28, 2022 • 2 new comments

• BUG: Change numeric_only default to True

  #46096 commented on Feb 24, 2022 • 2 new comments

• dtype change when doing operations on dataframes

  #32822 commented on Feb 22, 2022 • 1 new comment

• EA interface - requirements for "hashable, value+order-preserving ndarray"

  #33276 commented on Feb 22, 2022 • 1 new comment

• BUG: non-monotonic DatetimeIndex does not raise KeyError for missing labels

  #7827 commented on Feb 22, 2022 • 1 new comment

• ENH: timezone-aware `Period`

  #45736 commented on Feb 23, 2022 • 1 new comment

• Add ability to plot area kind with "steps" drawstyle

  #29451 commented on Feb 23, 2022 • 1 new comment

• [TST] Revise test_astype_str_map

  #28454 commented on Feb 24, 2022 • 1 new comment

• QST: Is differenence in frame __setitem__() and __getitem__() intended?

  #40846 commented on Feb 25, 2022 • 1 new comment

• BUG: scatter_matrix not working with subplots

  #45885 commented on Feb 25, 2022 • 1 new comment

• BUG: Excel merge cell does not handle empty strings correctly

  #45865 commented on Feb 26, 2022 • 1 new comment

• ENH/CI: Cache packages installed from conda

  #42580 commented on Feb 28, 2022 • 1 new comment

• DOC: Addition of plt.show() in the "How to create plots in pandas?" section of the Getting started tutorials

  #45772 commented on Feb 28, 2022 • 1 new comment

• pandas.to_datetime() does not respect exact format string

  #12649 commented on Feb 28, 2022 • 1 new comment

• BUG: validate_docstrings has many warnings

  #44642 commented on Mar 1, 2022 • 1 new comment

• BUG: changed behavior of df.loc on multiindex since 1.3.0

  #43599 commented on Mar 1, 2022 • 1 new comment

• added test to indexing on groupby, #32464

  #44046 commented on Feb 27, 2022 • 1 new comment

• ENH: add support for reading .tar archives

  #44787 commented on Feb 27, 2022 • 1 new comment

• TYP: tighten return type in function any

  #44896 commented on Feb 28, 2022 • 1 new comment

• REF: use more explicit to_numpy(object) instead of astype(object) in EA implementation

  #45521 commented on Feb 24, 2022 • 1 new comment

• BUG: df.getitem returning copy instead of view for unique column in dup index

  #45526 commented on Feb 26, 2022 • 1 new comment

• ENH: add NDArrayBackedExtensionArray to public API

  #45544 commented on Feb 27, 2022 • 1 new comment

• Pandas pivot_table MultiIndex and dropna=False generates all combinations of modalities instead of keeping existing one only

  #45994 commented on Feb 27, 2022 • 1 new comment

• DOC: added examples for index assignment using Series

  #46064 commented on Feb 26, 2022 • 1 new comment

• Construction of series with na and datetime dtype

  #46068 commented on Feb 27, 2022 • 1 new comment

• ENH: Make `DataFrame.info()` follow `display.unicode.east_asian_width` option

  #46082 commented on Feb 24, 2022 • 0 new comments

• BUG: Inconsistent behaviour for DataFrame.value_counts and Series.value_counts on categoricals

  #44001 commented on Feb 24, 2022 • 0 new comments

• DEPR: log of deprecations in 1.x (to be removed in 2.0)

  #30228 commented on Feb 26, 2022 • 0 new comments

• BUG: alignment of MultiIndexed DataFrame to a Series with a common index level

  #46001 commented on Feb 26, 2022 • 0 new comments

• BUG: alignment in operations with multi-index

  #43321 commented on Feb 26, 2022 • 0 new comments

• BUG: df[frozenset] fails if (other) column names are not unique

  #41062 commented on Feb 26, 2022 • 0 new comments

• BUG: Multi-indexed Series to Numpy fails when `na_value` supplied

  #45774 commented on Feb 26, 2022 • 0 new comments

• DOC: Reindexing behaviour of dataframe column-assignment missing

  #39845 commented on Feb 26, 2022 • 0 new comments

• Some str reducers fail in Groupby.transform with axis=1

  #45986 commented on Feb 26, 2022 • 0 new comments

• ENH: support masked arrays in groupby cython algos

  #37493 commented on Feb 26, 2022 • 0 new comments

• DOC: missing path-like at path parameter in to_pickle()

  #46081 commented on Feb 26, 2022 • 0 new comments

• BUG: ExtensionArray with 2D datetime64 values errors on display formatting

  #38390 commented on Feb 27, 2022 • 0 new comments

• BUG: stack_multi_columns extension array downcast

  #45740 commented on Feb 27, 2022 • 0 new comments

• BUG: `GroupBy.describe` produces inconsistent results for empty datasets

  #41575 commented on Feb 27, 2022 • 0 new comments

• CI: failing timedelta64 test on Linux py37_locale build

  #33890 commented on Feb 27, 2022 • 0 new comments

• BUG: df.plot.scatter() with `norm` keyword fails with 'multiple values for keyword argument' TypeError

  #45809 commented on Feb 27, 2022 • 0 new comments

• ENH: support defaultdict in read_csv dtype parameter

  #41574 commented on Feb 27, 2022 • 0 new comments

• BUG: `pd.concat` produces frames with inconsistent order when concating the ones with categorical indices

  #44099 commented on Feb 27, 2022 • 0 new comments

• DEPR: make Timestamp arguments (especially unit) keyword-only

  #45307 commented on Feb 27, 2022 • 0 new comments

• Dtype inconsistency when appending to empty dataframe

  #22621 commented on Mar 1, 2022 • 0 new comments

• ENH: Implement multi-column `DataFrame.quantiles`

  #44301 commented on Feb 22, 2022 • 0 new comments

• DEPR: df.iloc[:, foo] = bar attempt to set inplace

  #45333 commented on Feb 28, 2022 • 0 new comments

• ENH: Add typing tests according to the issue 45252

  #45594 commented on Feb 22, 2022 • 0 new comments

• TYP: return type of read_csv/table

  #45610 commented on Feb 23, 2022 • 0 new comments

• CI: use pipx and build to simplify and remove a workaround (2)

  #45611 commented on Feb 27, 2022 • 0 new comments

• BUG: loc raising uncontrolled error when more indexers than levels

  #45787 commented on Feb 22, 2022 • 0 new comments

• BUG: Convert <br> to space in `pd.read_html`

  #45972 commented on Feb 27, 2022 • 0 new comments

• FIX # 45957 issue read_csv with empty list

  #46033 commented on Feb 27, 2022 • 0 new comments