pandas-dev / pandas Public

77 Pull requests merged by 16 people

• Backport PR #45364 on branch 1.4.x (CI/TST: update pyarrow pin in windows-3.8 env / fix failing parquet test on windows)

  #45450 merged Jan 18, 2022

• Backport PR #45426 on branch 1.4.x (BENCH: Fix ASV branch to main)

  #45447 merged Jan 18, 2022

• Backport PR #45432 on branch 1.4.x (REGR: DataFrame(dict) missing columns should not be views)

  #45446 merged Jan 18, 2022

• BENCH: Fix ASV branch to main

  #45426 merged Jan 18, 2022

• REGR: DataFrame(dict) missing columns should not be views

  #45432 merged Jan 18, 2022

• CI/TST: update pyarrow pin in windows-3.8 env / fix failing parquet test on windows

  #45364 merged Jan 18, 2022

• CI: py38 builds

  #45429 merged Jan 17, 2022

• MISC: Check that min versions are aligned in CI and import_optional_dependency

  #45219 merged Jan 17, 2022

• BUG: DataFrameGroupBy.value_counts() fails if as_index=False and there are duplicate column labels

  #45160 merged Jan 17, 2022

• DOC: Improve 10min/EnhancingPerf.rst

  #45390 merged Jan 17, 2022

• ENH: Add equivalence test for float in to_numeric() GH43693

  #43710 merged Jan 17, 2022

• CLN: assorted follow-ups

  #45402 merged Jan 17, 2022

• PERF: avoid copies in lib.infer_dtype

  #45057 merged Jan 17, 2022

• DEPR: SparseArray.astype(dtype) respect non-sparse dtype

  #45339 merged Jan 17, 2022

• BUG/PERF: MaskedArray.__setitem__ validation

  #45404 merged Jan 17, 2022

• STYLE: use option_context almost always

  #45407 merged Jan 17, 2022

• DOC: Clean up redirects & dead links

  #45408 merged Jan 17, 2022

• CI: Migrate Python 3.10 testing to Posix GHA/Azure Pipelines

  #45120 merged Jan 17, 2022

• BUG: no `apply` to empty df in `Styler`

  #45383 merged Jan 17, 2022

• Backport PR #44839 on branch 1.4.x (REGR: allow reindexing datetimelike with upcast / raise deprecation warning)

  #45406 merged Jan 17, 2022

• DEPR: DatetimeIndex.intersection with mixed timezones cast to UTC, not object

  #45357 merged Jan 17, 2022

• API: Allow other na values in StringArray Constructor

  #45168 merged Jan 17, 2022

• CLN: reuse common_dtype_categorical_compat

  #45401 merged Jan 17, 2022

• CLN: consolidate arg no longer needed

  #45400 merged Jan 17, 2022

• Backport PR #45389 on branch 1.4.x (REG/REF: close file handles engine-independently in read_csv)

  #45398 merged Jan 17, 2022

• REGR: allow reindexing datetimelike with upcast / raise deprecation warning

  #44839 merged Jan 16, 2022

• Backport PR #45363 on branch 1.4.x (BUG: correctly instantiate subclassed DataFrame/Series in groupby apply)

  #45397 merged Jan 16, 2022

• Backport PR #45393 on branch 1.4.x (DOC: whatsnew note for groupby.apply bugfix)

  #45396 merged Jan 16, 2022

• REF: implement LocationIndexer._tupleize_axis_indexer

  #45378 merged Jan 16, 2022

• Backport PR #45371 on branch 1.4.x (PERF: avoid SQL MetaData reflection in init #45260)

  #45395 merged Jan 16, 2022

• Backport PR #45377 on branch 1.4.x (REGR: DataFrame.reset_index with empty RangeIndex)

  #45394 merged Jan 16, 2022

• REG/REF: close file handles engine-independently in read_csv

  #45389 merged Jan 16, 2022

• BUG: Fix for xlabel/ylabel in barh plot

  #45145 merged Jan 16, 2022

• Fix Stale Action commenting on issues

  #45391 merged Jan 16, 2022

• BUG: Float64Index.astype('u8') returns Int64Index

  #45309 merged Jan 16, 2022

• BUG: .asof casting bool results to float64 GH#16063

  #45299 merged Jan 16, 2022

• REF: Share Block.setitem

  #45348 merged Jan 16, 2022

• DOC: Improve scale.rst

  #45385 merged Jan 16, 2022

• REF: use standard coerce pattern in Block.shift

  #45353 merged Jan 16, 2022

• REF: de-duplicate methods across nullable EA subclasses

  #45380 merged Jan 16, 2022

• ENH: support 'out' keyword in Categorical.__array_ufunc__

  #45381 merged Jan 16, 2022

• BUG: correctly instantiate subclassed DataFrame/Series in groupby apply

  #45363 merged Jan 16, 2022

• DOC: whatsnew note for groupby.apply bugfix

  #45393 merged Jan 16, 2022

• PERF: avoid SQL MetaData reflection in init #45260

  #45371 merged Jan 16, 2022

• REGR: DataFrame.reset_index with empty RangeIndex

  #45377 merged Jan 16, 2022

• BUG: setitem into complex64 overflow

  #45285 merged Jan 16, 2022

• BUG: frame[x].loc[y] inconsistent with frame.at[x, y] GH#22372

  #45287 merged Jan 16, 2022

• BUG: DataFrame.astype preserve subclasses GH#40810

  #45272 merged Jan 16, 2022

• BUG: categorical-with-nas to float64 instead of object

  #45359 merged Jan 16, 2022

• BUG: CategoricalIndex.union with nans

  #45362 merged Jan 16, 2022

• DOC: Improve sparse.rst

  #45376 merged Jan 16, 2022

• DOC: Improve gotchas.rst

  #45375 merged Jan 16, 2022

• BUG: hash_array TypeError instead of AttributeError on Index GH#42003

  #45301 merged Jan 16, 2022

• DEPR: inconsistent series[i:j] slicing with Int64Index GH#45162

  #45324 merged Jan 16, 2022

• CI: Simplify GHA dependency files

  #45257 merged Jan 16, 2022

• DEPR: Series/DataFrame/HDFStore.iteritems()

  #45321 merged Jan 16, 2022

• BUG: No error raised in to_stata() for -np.inf #45350

  #45360 merged Jan 16, 2022

• Backport PR #45244 on branch 1.4.x (TYP: Ignore numpy related issues)

  #45306 merged Jan 15, 2022

• Backport PR #45334 on branch 1.4.x (DEPR: un-deprecate errors kwd reverts #44294)

  #45343 merged Jan 15, 2022

• CI: Ensure GHA uses major versions of actions

  #45355 merged Jan 14, 2022

• BUG: ArrayManager not respecting copy keyword

  #44889 merged Jan 14, 2022

• Backport PR #45354 on branch 1.4.x (TST: xfail test_arrowparquet_options for windows)

  #45365 merged Jan 14, 2022

• TST: xfail test_arrowparquet_options for windows

  #45354 merged Jan 14, 2022

• BUG: DataFrame[dt64].quantile(axis=1) when empty returning f8

  #45294 merged Jan 13, 2022

• REF: improve rendering of categories in CategoricalIndex

  #45340 merged Jan 13, 2022

• TST: Split/parameterize indexing tests

  #45325 merged Jan 13, 2022

• DEPR: un-deprecate errors kwd reverts #44294

  #45334 merged Jan 13, 2022

• Backport PR #45336 on branch 1.4.x (CI/DOC: replace master -> main branch)

  #45338 merged Jan 13, 2022

• CI/DOC: replace master -> main branch

  #45336 merged Jan 13, 2022

• Backport PR #45087 on branch 1.4.x (BUG: Timestamp.to_pydatetime losing 'fold')

  #45330 merged Jan 12, 2022

• BUG: Timestamp(2020,1, 1, tzinfo=foo) GH#31929

  #45308 merged Jan 12, 2022

• BUG: Timestamp.to_pydatetime losing 'fold'

  #45087 merged Jan 12, 2022

• DOC CLN: use ``color`` shared doc string

  #45251 merged Jan 12, 2022

• REF: implement find_result_type

  #45304 merged Jan 12, 2022

• DEPR: line_terminator->lineterminator GH#9569

  #45302 merged Jan 12, 2022

• DOC: fix a typo

  #45327 merged Jan 12, 2022

• CI: Fix concurrency group for min versions posix builds

  #45323 merged Jan 12, 2022

33 Pull requests opened by 13 people

• TYP: offsets.pyi

  #45331 opened Jan 12, 2022

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

  #45333 opened Jan 12, 2022

• Ko ya346/update import doc

  #45346 opened Jan 13, 2022

• Update cheatsheet

  #45347 opened Jan 13, 2022

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

  #45352 opened Jan 13, 2022

• DOC: add version dropdown to the online doc site

  #45370 opened Jan 14, 2022

• BUG: CategoricalIndex.get_indexer issue with NaNs (#45361)

  #45373 opened Jan 14, 2022

• REF: Transfer `DataFrame.to_latex` to `Styler` implementation for v1.5.0

  #45382 opened Jan 15, 2022

• PERF: use groupby.transform fast path for DataFrame -> Series aggregations

  #45387 opened Jan 15, 2022

• REF: simplify Block.setitem

  #45403 opened Jan 16, 2022

• REF: share NumericIndex.astype+Index.astype

  #45405 opened Jan 16, 2022

• CLN: remove sqlalchemy<14 compat

  #45410 opened Jan 17, 2022

• ENH: Add dtypes/converters arguments for pandas.read_xml

  #45411 opened Jan 17, 2022

• CLN: remove _from_mgr (no longer used after GH-45363)

  #45415 opened Jan 17, 2022

• REF: share BooleanArray.astype+NumericArray.astype

  #45420 opened Jan 17, 2022

• BUG: BooleanArray+pd.NA altering array inplace

  #45421 opened Jan 17, 2022

• DEPR: Index.is_monotonic for Index.is_monotonic_increasing

  #45422 opened Jan 17, 2022

• BUG: accept strings in FloatingArray._from_sequence

  #45424 opened Jan 17, 2022

• REF: share EABackedBlock.fillna

  #45425 opened Jan 17, 2022

• ENH: Add numba engine to groupby.min/max

  #45428 opened Jan 17, 2022

• BUG: setting pd.NA into Series casts to object

  #45431 opened Jan 17, 2022

• PERF: MaskedArray._values_for_argsort

  #45434 opened Jan 17, 2022

• CI: Set Azure job timeouts to max limit and don't split

  #45436 opened Jan 18, 2022

• CI: Don't split slow vs non slow jobs for GHA posix

  #45437 opened Jan 18, 2022

• compat: catch dateutil ParserError

  #45438 opened Jan 18, 2022

• REF: remove Block.putmask fallback to where

  #45440 opened Jan 18, 2022

• DOC: Update 10min.rst (removes superfluous indirection in zip-statement.)

  #45445 opened Jan 18, 2022

• DEPR: undo deprecation of astype(int64) for datetimelike values

  #45449 opened Jan 18, 2022

• Add back __array_wrap__ for dask compatibility

  #45451 opened Jan 18, 2022

• REF: move np_can_hold_element to mgr method

  #45453 opened Jan 18, 2022

• CI: py38 builds

  #45454 opened Jan 18, 2022

• DOC: Added info on dict of Series with copy=False solution

  #45455 opened Jan 18, 2022

• CI/DOC: Fix docbuild link warnings

  #45456 opened Jan 18, 2022

53 Issues closed by 18 people

• QST: how i slove problem like it

  #45452 closed Jan 18, 2022

• BUG: DataFrame constructor with copy=False and missing columns creates columns that are views of each other

  #45369 closed Jan 18, 2022

• TST: error in parquet tests on windows with new pyarrow exception

  #45344 closed Jan 18, 2022

• BUG: `DataFrameGroupBy.value_counts()` fails if `as_index=False` and there are duplicate column labels

  #44992 closed Jan 17, 2022

• BUG: to_numeric incorrectly converting values >= 16,777,217 with downcast='float'

  #43693 closed Jan 17, 2022

• API: infer_dtype with skipna=True only skip valid-for-dtype NAs

  #45022 closed Jan 17, 2022

• API: SparseArray.astype behaviour to always preserve sparseness

  #34457 closed Jan 17, 2022

• PERF: `apply` on `boolean`-dtype DataFrame is exceedingly slow

  #44172 closed Jan 17, 2022

• STYLE: use option_context almost always

  #38813 closed Jan 17, 2022

• CI: Move Python 3.10 workflows to Posix Matrix File

  #43890 closed Jan 17, 2022

• Misleading error message when incorrectly using DataFrame.style.apply

  #45313 closed Jan 17, 2022

• BUG: module 'pandas.io.formats' has no attribute 'html' --in version 1.3.4

  #45413 closed Jan 17, 2022

• API/ENH: Accept nan-likes in StringArray constructor

  #40839 closed Jan 17, 2022

• tz-aware DatetimeIndex intersection raises AttributeError when values are the same but tz differs

  #24362 closed Jan 17, 2022

• BUG: Reindex null timedelta series with `pd.Timedelta` fails

  #42921 closed Jan 16, 2022

• ENH: add dtype to read_xml

  #45341 closed Jan 16, 2022

• Behavior change of 1.4.rc0 when group by `apply` returns a copy of the passed data frame

  #45315 closed Jan 16, 2022

• BUG: read_csv can leak file handles if validation fails

  #45384 closed Jan 16, 2022

• BUG: xlabel/ylabel don't work as expected with barh plots

  #45144 closed Jan 16, 2022

• BUG: astype_nansafe from float to unsigned int with negatives

  #45151 closed Jan 16, 2022

• Series.asof not preserving dtype

  #16063 closed Jan 16, 2022

• BUG: GeoDataFrame attribute dropped by pandas when using groupby.apply

  #45314 closed Jan 16, 2022

• PERF: 1.4.0rc1 Execution time of pd.read_sql increased from seconds to minutes

  #45260 closed Jan 16, 2022

• BUG: 1.4.0rc1 AssertionError when reset_index drops all indexes except for an empty RangeIndex.

  #45230 closed Jan 16, 2022

• BUG?: should ComplexBlock._can_hold_element/should_store check itemsize?

  #32878 closed Jan 16, 2022

• Using df.at() for assignment changes views of certain columns, but not all of them

  #22372 closed Jan 16, 2022

• BUG: for DataFrame subclass, astype with dict does not keep the subclass

  #40810 closed Jan 16, 2022

• BUG: 1.3.0rc1 pd.util.hash_array on Index fails to access _values_for_factorize

  #42003 closed Jan 16, 2022

• Can't slice float indices, but can slice integer indices?

  #7501 closed Jan 16, 2022

• API: series_with_int64index[i:j] should be label-based

  #45162 closed Jan 16, 2022

• BUG: No error raised when write dta files using `to_stata()` if the column contains `-np.inf`

  #45350 closed Jan 16, 2022

• ENH pd.ExcelFile new method to read all sheets

  #44168 closed Jan 15, 2022

• QST: Is Series homogeneous or heterogeneous?

  #45379 closed Jan 15, 2022

• PERF: unecessary sort/concat in core/internals/combine when there's 1 block

  #12732 closed Jan 15, 2022

• separate sparsify for header and body

  #11987 closed Jan 15, 2022

• BUG: Reindexing a DatetimeIndex during Daylight Saving Transition Causes Segmentation Fault with dateutil tz

  #40817 closed Jan 15, 2022

• ENH: sorted numpy array of datetime64 as pandas.DataFrame.index without copy-conversion

  #45358 closed Jan 15, 2022

• How to cause newline to escape as \n; fieldsep to escape as \n and \t

  #21087 closed Jan 14, 2022

• QST: use and breadth of `x_compat=True`

  #45367 closed Jan 14, 2022

• How to know the ids to be resampled

  #45366 closed Jan 14, 2022

• BUG: df.str.len() returning floats

  #45351 closed Jan 14, 2022

• API/BUG: Series(floating, dtype=intlike) ignores dtype, DataFrame casts

  #40110 closed Jan 13, 2022

• BUG: Empty DataFrame(..., dtype='datetime64[ns]').quantile(..., axis=1) returns float64 dtype

  #41544 closed Jan 13, 2022

• REF: share Categorical._repr_categories and CategoricalIndex._format_attrs

  #45218 closed Jan 13, 2022

• BUG: Cannot install Pandas 1.35 on MacOS Monterey with Chip M1

  #44959 closed Jan 13, 2022

• BUG: read_xml float auto-rounding

  #45342 closed Jan 13, 2022

• ENH: Suggestions on pd.merge

  #45322 closed Jan 13, 2022

• BUG: Unexpected behavioral change, NaN support dropped with `dispatch_ufunc_with_out`

  #45249 closed Jan 13, 2022

• BUG: `DataFrame.groupby` silently ignores `as_index=False` when aggregating with multiple functions on a single column

  #45248 closed Jan 13, 2022

• API: pd.Label to disambiguate e.g. MultiIndex level, or tuple as sequence vs label

  #42349 closed Jan 12, 2022

• BUG: pd.Timestamp constructor fails if tzinfo is specified

  #31929 closed Jan 12, 2022

• Hi all, I'm have multiple link (.iqy) to SharePoint, I want to combine them in excel using python

  #45329 closed Jan 12, 2022

• Adding list of international holidays calendars

  #45310 closed Jan 12, 2022

28 Issues opened by 21 people

• REGR: to_frame with name=None no longer gives default name

  #45448 opened Jan 18, 2022

• ENH: Custom parser and engine in `pd.eval`, `pd.query` and `pandas.core.computation.expr.Expr`

  #45444 opened Jan 18, 2022

• BUG: mask with alignment

  #45443 opened Jan 18, 2022

• BUG: read_xml not support large file

  #45442 opened Jan 18, 2022

• BUG: Duplicate columns when select subsets with same columns

  #45439 opened Jan 18, 2022

• DEPR/Community: spin off s3 support

  #45433 opened Jan 17, 2022

• ENH: Allow guess_datetime_format to guess datetime formats with month names

  #45427 opened Jan 17, 2022

• API: downcating on fillna no-ops intentional?

  #45423 opened Jan 17, 2022

• BUG: ArrowStringArray.__setitem__ breaks views

  #45419 opened Jan 17, 2022

• BUG: Unstable dtype of index resulting from groupby with mapping

  #45418 opened Jan 17, 2022

• BUG: Partial support only for extension DTypes in `pandas.core.dtypes.common`

  #45417 opened Jan 17, 2022

• BUG: 1.4.0rc0: pd.read_sql not compatible with pymysql

  #45416 opened Jan 17, 2022

• BUG: resample on TimedeltaIndex with `closed=right` takes no effect

  #45414 opened Jan 17, 2022

• BUG: can create IntervalDtype[float32] but not IntervalArray[float32]

  #45412 opened Jan 17, 2022

• DOC/CI: Add Github Action cron job to check external links in documentation

  #45409 opened Jan 17, 2022

• ENH: Inference for ExtensionArray and ExtensionDtype.type

  #45399 opened Jan 16, 2022

• BUG: Confusing/inconsistent behaviour with `.to_sql()` when using a custom PostgreSQL `search_path`

  #45392 opened Jan 16, 2022

• BUILD: Cannot create development environment using pip on macOS

  #45374 opened Jan 14, 2022

• BUG: Pandas.DataFrame.str.replace function fails silently for mixed data mixing strings and float/int and replaces with NaN

  #45372 opened Jan 14, 2022

• BUG: CategoricalIndex.get_indexer with

  #45361 opened Jan 14, 2022

• ENH: ExtensionDtpye._dtype_with_na/_maybe_promote

  #45349 opened Jan 13, 2022

• is_numeric_dtype('B') returns True

  #45345 opened Jan 13, 2022

• BUG: read_fwf doesn't allow names with colspec='infer'

  #45337 opened Jan 12, 2022

• ENH: fill_na with new fill_partial argument

  #45332 opened Jan 12, 2022

• BUG: accessor can't access `__name__`

  #45328 opened Jan 12, 2022

• BUG: series.astype(str) vs Index.astype(str) inconsistency

  #45326 opened Jan 12, 2022

• BUG: Blank axes when mixing pandas- and matplotlib-style plots in matplotlib>=3.4.0

  #45320 opened Jan 11, 2022

• BUG: Calling to_datetime With errrors="coerce" Still Raises After 50 Rows

  #45319 opened Jan 11, 2022

181 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.

• DISCUSS Rename master to main?

  #39577 commented on Jan 17, 2022 • 26 new comments

• BUG/ENH: Translate CSS border properties for `Styler.to_excel`

  #45312 commented on Jan 17, 2022 • 23 new comments

• ENH: Add allow_duplicates to MultiIndex.to_frame

  #45318 commented on Jan 18, 2022 • 19 new comments

• BUG: do not replace all nulls with "NaN"-string in Series index

  #45283 commented on Jan 18, 2022 • 11 new comments

• ENH: Bring over Microsoft typing stubs as starting point for typing public API

  #45253 commented on Jan 17, 2022 • 6 new comments

• Add 'color' and 'size' to arguments

  #44856 commented on Jan 17, 2022 • 6 new comments

• BUG: In Series all null-values are printed as NaN

  #45263 commented on Jan 13, 2022 • 5 new comments

• DOC: Additional items for the cheat sheet

  #40680 commented on Jan 14, 2022 • 5 new comments

• CI: Numpy 1.22 caused CI to fail

  #45182 commented on Jan 15, 2022 • 5 new comments

• BUG: "replace" does not work with different numpy-int types even when values are the same

  #45311 commented on Jan 15, 2022 • 5 new comments

• BUG: pd._libs.lib.is_iterator reports Timestamp as iterable on Cygwin

  #45158 commented on Jan 13, 2022 • 4 new comments

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

  #45307 commented on Jan 11, 2022 • 3 new comments

• read_excel with openpyxl engine doesn't close file after reading

  #29803 commented on Jan 13, 2022 • 3 new comments

• read_sas fails due to unclear problems in SAS dataset

  #16615 commented on Jan 13, 2022 • 3 new comments

• REF: de-duplicate Index._find_common_type_compat and concat.cast_to_common_type

  #45149 commented on Jan 17, 2022 • 3 new comments

• ENH: Allow column grouping in DataFrame.plot

  #29944 commented on Jan 17, 2022 • 3 new comments

• Typ parts of python parser

  #45015 commented on Jan 16, 2022 • 3 new comments

• When using to_sql(), continue if duplicate primary keys are detected?

  #15988 commented on Jan 12, 2022 • 2 new comments

• BUG: Series.replace not working if there are duplicated columns

  #45316 commented on Jan 12, 2022 • 2 new comments

• RLS: 1.4

  #41957 commented on Jan 15, 2022 • 2 new comments

• Bug: read_csv losing precision when reading Int64 data with N/A values

  #32134 commented on Jan 17, 2022 • 2 new comments

• No way to construct mixed dtype DataFrame without total copy, proposed solution

  #9216 commented on Jan 18, 2022 • 2 new comments

• ENH: Add set of tests to type check the public APIs

  #45252 commented on Jan 18, 2022 • 2 new comments

• ENH: Add nullable dtypes to read_csv

  #40687 commented on Jan 16, 2022 • 2 new comments

• ENH: conditional merge - initial concept

  #42964 commented on Jan 12, 2022 • 2 new comments

• ENH: Add `milliseconds` field support for `pd.DateOffset`

  #43598 commented on Jan 17, 2022 • 2 new comments

• BUG: fix Frame getitem when column keys are nested tuples

  #43939 commented on Jan 18, 2022 • 2 new comments

• BUG: fix .loc.__setitem__ not raising when using too many indexers

  #44656 commented on Jan 18, 2022 • 2 new comments

• TYP: interval.pyi

  #44922 commented on Jan 17, 2022 • 2 new comments

• BUG: using dtype='int64' argument of Series causes ValueError: values cannot be losslessly cast to int64 for integer strings

  #45017 commented on Jan 17, 2022 • 2 new comments

• Move dummy coding related functions from reshape/reshape into separate file

  #45215 commented on Jan 14, 2022 • 2 new comments

• DEPR: inplace dtype-changing methods on Categorical

  #37643 commented on Jan 11, 2022 • 1 new comment

• CI: DeprecationWarning in `tests/io/json/test_json_table_schema.py` and `tests/io/json/test_pandas.py`

  #35661 commented on Jan 12, 2022 • 1 new comment

• read_excel opimize nrows

  #32727 commented on Jan 12, 2022 • 1 new comment

• BUG: Scatterplot x-axis label disappears with colorscale when using matplotlib backend

  #36064 commented on Jan 12, 2022 • 1 new comment

• API: setitem copy/view behavior ndarray vs Categorical vs other EA

  #38896 commented on Jan 12, 2022 • 1 new comment

• BUG: read_sql no longer works simply with SqlAlchemy selectables and a quick fix

  #35484 commented on Jan 13, 2022 • 1 new comment

• DOCS: Update import statements in docstrings

  #21749 commented on Jan 13, 2022 • 1 new comment

• pd.Timestamp.utctimetuple() raises TypeError on Python 3.8

  #32174 commented on Jan 13, 2022 • 1 new comment

• BUG: dataframe.replace({np.nan: None}) failed when replaced even number of times

  #44485 commented on Jan 13, 2022 • 1 new comment

• ENH: Writing a DataFrame to Excel with `XlsxWriter` in constant_memory mode requires row-by-row writes

  #34710 commented on Jan 13, 2022 • 1 new comment

• BUG: segfault from json.dumps in Python 3.10

  #42130 commented on Jan 14, 2022 • 1 new comment

• BUG: cummin, max, sum not valid when used with agg + NaN not skipped.

  #34047 commented on Jan 15, 2022 • 1 new comment

• BUG: "with pd.ExcelWriter" produces a corrupt Excel file in case of .xlsm extension

  #44868 commented on Jan 15, 2022 • 1 new comment

• Feature Request - New pd.set_option() option: display.column_delimiter : str

  #43554 commented on Jan 15, 2022 • 1 new comment

• ENH: unit of measurement / physical quantities

  #10349 commented on Jan 15, 2022 • 1 new comment

• BUG: DataFrame.drop_duplicates confuses NULL bytes

  #34551 commented on Jan 16, 2022 • 1 new comment

• BUG: `groupby.apply()` inconsistently indexes its return value with the groupby-cols

  #44803 commented on Jan 16, 2022 • 1 new comment

• API: distinguish NA vs NaN in floating dtypes

  #32265 commented on Jan 17, 2022 • 1 new comment

• Dtype inconsistency when appending to empty dataframe

  #22621 commented on Jan 17, 2022 • 1 new comment

• Feature request: make get_dummies() better usable for data frames with multi-index columns

  #26560 commented on Jan 17, 2022 • 1 new comment

• BUG: pd.to_datetime() raises InvalidIndexError with Null-like arguments

  #35888 commented on Jan 17, 2022 • 1 new comment

• ENH: should we support np.allclose for ExtensionArrays?

  #37915 commented on Jan 17, 2022 • 1 new comment

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

  #33276 commented on Jan 17, 2022 • 1 new comment

• BUG: validate_docstrings has many warnings

  #44642 commented on Jan 18, 2022 • 1 new comment

• Joining on a nullable column

  #32306 commented on Jan 18, 2022 • 1 new comment

• API: User-control of result keys in GroupBy.apply

  #34998 commented on Jan 16, 2022 • 1 new comment

• REF: avoid broadcasting of Series to DataFrame in ops for ArrayManager

  #40482 commented on Jan 16, 2022 • 1 new comment

• [ArrayManager] Array version of fillna logic

  #41104 commented on Jan 16, 2022 • 1 new comment

• ENH: use native filesystem (if available) for read_parquet with pyarrow engine

  #41194 commented on Jan 16, 2022 • 1 new comment

• Parse IntervalArray and IntervalIndex from strings

  #41451 commented on Jan 14, 2022 • 1 new comment

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

  #43157 commented on Jan 16, 2022 • 1 new comment

• Fix multiindex loc nan

  #43943 commented on Jan 16, 2022 • 1 new comment

• ENH: Support observed keyword argument in Categorical.value_counts

  #44002 commented on Jan 16, 2022 • 1 new comment

• BUG: Min/max does not work for dates with timezones if there are missing values in the data frame

  #44222 commented on Jan 16, 2022 • 1 new comment

• TYP: remove a `type: ignore`

  #44288 commented on Jan 16, 2022 • 1 new comment

• TYP: _ensure_data and infer_dtype_from_array

  #44292 commented on Jan 16, 2022 • 1 new comment

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

  #44301 commented on Jan 14, 2022 • 1 new comment

• [ArrayManager] Array version of putmask logic

  #44396 commented on Jan 16, 2022 • 1 new comment

• CI: publish benchmarks log as artifact

  #44464 commented on Jan 16, 2022 • 1 new comment

• Fix/26837 format array

  #44527 commented on Jan 16, 2022 • 1 new comment

• TYP: masked array mask

  #44547 commented on Jan 16, 2022 • 1 new comment

• [EHN] pandas.DataFrame.to_orc

  #44554 commented on Jan 17, 2022 • 1 new comment

• DEP: df.insert not showing warning for allow_dups and timezoneaware and naive indexing

  #44605 commented on Jan 16, 2022 • 1 new comment

• CI: Run sdist build less often

  #44731 commented on Jan 16, 2022 • 1 new comment

• PERF: reducing dtype checking overhead in groupby

  #44738 commented on Jan 16, 2022 • 1 new comment

• ENH: reset_index on a MultiIndex with duplicate levels raises a ValueError

  #44755 commented on Jan 18, 2022 • 1 new comment

• ERR: improve error message for unsupported reductions

  #44780 commented on Jan 16, 2022 • 1 new comment

• ENH: Solution for issue #39859 | Added documentation source link to each page

  #44783 commented on Jan 12, 2022 • 1 new comment

• PERF: avoid calling .values to know the result dtype in eval()

  #44791 commented on Jan 16, 2022 • 1 new comment

• BUG: inconsistency in dtype of replace() #44864

  #44869 commented on Jan 16, 2022 • 1 new comment

• BUG: fixed fillna('') on a Int64 column causes TypeError: <U3 cannot b…

  #44870 commented on Jan 16, 2022 • 1 new comment

• PERF: DataFrame.copy preserve row/column order

  #44871 commented on Jan 16, 2022 • 1 new comment

• Fix a bunch of docs syntax

  #44898 commented on Jan 16, 2022 • 1 new comment

• TST: Added tests to check if file exists for read_json.

  #44911 commented on Jan 16, 2022 • 1 new comment

• DEPR: special-casing PeriodDtype in Series.where/Series/mask fallback

  #45148 commented on Jan 16, 2022 • 1 new comment

• BUG: SeriesGroupBy.value_counts - index name missing when applied on categorical column

  #44324 commented on Jan 12, 2022 • 0 new comments

• pd.where OverflowError with large numbers

  #31687 commented on Jan 12, 2022 • 0 new comments

• BUG: Inconsistent MultiIndex level dtypes when merging non-monotonic index with category dtype

  #45317 commented on Jan 12, 2022 • 0 new comments

• API: Breaking Changes in 2.0 (without deprecations)

  #44823 commented on Jan 12, 2022 • 0 new comments

• BUG: Int64Index doesn't show when importing from pandas.core.indexes.numeric

  #44993 commented on Jan 13, 2022 • 0 new comments

• BUILD: Cannot install Pandas MAC OSx 12.1 M1 Chipe

  #45077 commented on Jan 13, 2022 • 0 new comments

• PERF: __slots__ not declared consistently, negating some memory savings

  #45124 commented on Jan 13, 2022 • 0 new comments

• API: Series[EA].fillna fallback behavior with incompatible value

  #45153 commented on Jan 13, 2022 • 0 new comments

• BUG: `DataFrame.to_string()` - customer formatter ***not*** called for all values in column

  #45177 commented on Jan 13, 2022 • 0 new comments

• BUG: groupby apply on single group transposes series output

  #45187 commented on Jan 13, 2022 • 0 new comments

• BUG: value counts with mixed NaNs is oddly rendering

  #45222 commented on Jan 13, 2022 • 0 new comments

• BUG: index level of Series dropped if not containing >1 unique value in numeric operations in non-commutative way

  #45224 commented on Jan 13, 2022 • 0 new comments

• PERF: DataFrame.duplicated with subset= for 1 column is slower than Series.duplicated

  #45236 commented on Jan 13, 2022 • 0 new comments

• BUG: pd.testing.assert_series_equal has problems with ExtensionArray input

  #45240 commented on Jan 13, 2022 • 0 new comments

• API: Consistency between DataFrame, MultiIndex.to_frame and reset_index

  #45245 commented on Jan 13, 2022 • 0 new comments

• ENH: Allow `df.to_sql()` to pass dialect kwargs to SQLAlchemy.

  #45259 commented on Jan 13, 2022 • 0 new comments

• PERF: Memory leak with pandas.Series.str.replace()

  #45277 commented on Jan 13, 2022 • 0 new comments

• BUG: pandas to_hdf has a problem with compressing multi key storage

  #45286 commented on Jan 13, 2022 • 0 new comments

• BUG: pandas dataframe with string index containing row 'nan' gets converted to NaN when saved to and read from hdf5

  #45291 commented on Jan 13, 2022 • 0 new comments

• BUG: inconsistent behavior on multi-dimensional slicing based on type

  #45303 commented on Jan 14, 2022 • 0 new comments

• Reading a SAS file with 0 rows gives None

  #18198 commented on Jan 14, 2022 • 0 new comments

• DEPR: subclassing Index

  #45289 commented on Jan 14, 2022 • 0 new comments

• BUG: MagicMocks are interpretated as lists, making impossible to patch functions used in Series.apply in version 1.3.x.

  #45298 commented on Jan 14, 2022 • 0 new comments

• BUG: `Styler.to_excel` does not export styles and formats correctly

  #42276 commented on Jan 16, 2022 • 0 new comments

• DOC: use shared docstrings for repeated args in Styler methods

  #41614 commented on Jan 16, 2022 • 0 new comments

• REGR: setting column with setitem should not modify existing array inplace

  #33457 commented on Jan 16, 2022 • 0 new comments

• BUG: Incorrect TypeError for CategoricalIndex.view('i8')

  #25464 commented on Jan 16, 2022 • 0 new comments

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

  #30228 commented on Jan 16, 2022 • 0 new comments

• Inconsistent behavior between df.sum() and groupby(col).agg('sum') on lists

  #29033 commented on Jan 16, 2022 • 0 new comments

• BUG: `groupby.sum` removed columns in case sequential calls of several `groupby.sum`

  #44132 commented on Jan 16, 2022 • 0 new comments

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

  #44584 commented on Jan 17, 2022 • 0 new comments

• BUG: `pd.infer_freq` for quarterly with wrong offset?

  #44745 commented on Jan 17, 2022 • 0 new comments

• BUG: the precision of big integer in read_json

  #44684 commented on Jan 17, 2022 • 0 new comments

• BUG: Pandas plot does not accept Columns for color keyword

  #44670 commented on Jan 17, 2022 • 0 new comments

• BUG: groupby.rolling.cov/corr(other) with len(group) != len(other) introduces extra NaN group results

  #44861 commented on Jan 17, 2022 • 0 new comments

• BUG: `groupby(...).agg()` with numpy transformations do not raise "Must produce aggregated value"

  #44845 commented on Jan 17, 2022 • 0 new comments

• BUG: Partial file write to disk on calling to_parquet() with engine='pyarrow' with unsupported dtype

  #44914 commented on Jan 17, 2022 • 0 new comments

• ENH: change pd.read_json kwarg to rtype or return_type?

  #44881 commented on Jan 17, 2022 • 0 new comments

• ENH: Timedelta cannot span more than 293 years => implementation limitation

  #35687 commented on Jan 17, 2022 • 0 new comments

• BUG: concat_{categorical, compat} leads to erroneous result on non-ns datetime-EA

  #33331 commented on Jan 17, 2022 • 0 new comments

• API: allow casting datetime64 to int64?

  #45034 commented on Jan 18, 2022 • 0 new comments

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

  #29636 commented on Jan 12, 2022 • 0 new comments

• BUG: df[col] = arr should not overwrite data in df[col]

  #35417 commented on Jan 12, 2022 • 0 new comments

• API: add EA._from_scalars / stricter casting of result values back to EA dtype

  #38315 commented on Jan 12, 2022 • 0 new comments

• ENH: Upgrade sql module for SQLAlchemy 2.0 #40686

  #40791 commented on Jan 12, 2022 • 0 new comments

• API: allow nan-likes in StringArray constructor

  #41412 commented on Jan 17, 2022 • 0 new comments

• Proof of concept for Copy-on-Write implementation

  #41878 commented on Jan 12, 2022 • 0 new comments

• Initial draft: from_dummies

  #41902 commented on Jan 14, 2022 • 0 new comments

• BUG: fix `Series.argsort`

  #42090 commented on Jan 12, 2022 • 0 new comments

• API: make concat_compat match CategoricalIndex._concat

  #42892 commented on Jan 17, 2022 • 0 new comments

• BUG: preserve object-dtype index when accessing DataFrame column / PERF: improve perf of Series fastpath constructor

  #42950 commented on Jan 12, 2022 • 0 new comments

• DOC: Additional Items for the Cheat Sheet

  #43036 commented on Jan 12, 2022 • 0 new comments

• ENH:included anti join functionality

  #43056 commented on Jan 14, 2022 • 0 new comments

• BUG: transpose casts mixed dtypes to object

  #43340 commented on Jan 12, 2022 • 0 new comments

• REF: remove JoinUnit.shape

  #43651 commented on Jan 12, 2022 • 0 new comments

• API: change ExtensionArray.astype to always return an ExtensionArray

  #43699 commented on Jan 12, 2022 • 0 new comments

• TST: changed behavior of df.loc on multiindex

  #43879 commented on Jan 12, 2022 • 0 new comments

• ENH: Add custom descriptors (such as dtype, nunique, etc.) to Styler output

  #43894 commented on Jan 14, 2022 • 0 new comments

• BENCH : Added benchmark for indexing with .loc for sorted/unsorted DatetimeIndex

  #43931 commented on Jan 12, 2022 • 0 new comments

• Raising ValueError when xlim and ylim contain non-int and non-float dtype elements #40889

  #43932 commented on Jan 12, 2022 • 0 new comments

• ENH/CI: Add Cache for Azure pipelines - posix

  #44029 commented on Jan 18, 2022 • 0 new comments

• REGR: Barplot broken on Index(dtype='object')

  #44033 commented on Jan 12, 2022 • 0 new comments

• added test to indexing on groupby, #32464

  #44046 commented on Jan 12, 2022 • 0 new comments

• BUG: make `mean()` raise an exception for strings

  #44131 commented on Jan 12, 2022 • 0 new comments

• ENH: add suffixes argument to compare

  #44365 commented on Jan 12, 2022 • 0 new comments

• Fix Regression when using sum/cumsum on Groupby objects

  #44526 commented on Jan 12, 2022 • 0 new comments

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

  #44615 commented on Jan 12, 2022 • 0 new comments

• CLN: helper attribute to check for ArrayManager

  #44676 commented on Jan 12, 2022 • 0 new comments

• API: value_counts consistently return int64 dtype

  #44692 commented on Jan 12, 2022 • 0 new comments

• [ArrayManager] Array version of interpolate logic

  #44736 commented on Jan 12, 2022 • 0 new comments

• ENH: add support for reading .tar archives

  #44787 commented on Jan 12, 2022 • 0 new comments

• ENH: Initial implementation of support for SQLAlchemy 2.0 in read_sql etc (WIP)

  #44794 commented on Jan 12, 2022 • 0 new comments

• PERF: avoid going through .values for reindexing both index/columns for ArrayManager

  #44798 commented on Jan 12, 2022 • 0 new comments

• TYP: enable reportGeneralTypeIssues but add many exceptions

  #44855 commented on Jan 12, 2022 • 0 new comments

• Added example for num and bool to pandas.Series.str.strip

  #44885 commented on Jan 12, 2022 • 0 new comments

• TYP: tighten return type in function any

  #44896 commented on Jan 18, 2022 • 0 new comments

• Added dtype test concat function

  #44927 commented on Jan 12, 2022 • 0 new comments

• Fix faulty logic with apply_empty_result()

  #44937 commented on Jan 12, 2022 • 0 new comments

• Test added to check if MultiIndex is unique

  #44953 commented on Jan 12, 2022 • 0 new comments

• BLD: remove MSVC workaround

  #45008 commented on Jan 12, 2022 • 0 new comments

• DOC: to_hdf() method docstring updated with dropna and index

  #45039 commented on Jan 12, 2022 • 0 new comments

• ENH: Index[bool]

  #45061 commented on Jan 12, 2022 • 0 new comments

• Groupby Agg not working if different partials with same name on the same column

  #45075 commented on Jan 12, 2022 • 0 new comments

• wip REF: redirect `df.to_html` to Styler if new kwargs are used.

  #45090 commented on Jan 12, 2022 • 0 new comments

• ENH: Use flags.allows_duplicate_labels to define default insert behavior

  #45109 commented on Jan 12, 2022 • 0 new comments

• ENH: Fix total seconds in timedelta

  #45129 commented on Jan 12, 2022 • 0 new comments

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

  #45161 commented on Jan 12, 2022 • 0 new comments

• allow multiple series argument calling in ufunc

  #45171 commented on Jan 12, 2022 • 0 new comments

• ENH: `Styler.show` shorthand alternative to `hide`

  #45176 commented on Jan 12, 2022 • 0 new comments

• PERF: avoid double copy in `to_numpy` functions if `np.asarray` is used

  #45188 commented on Jan 12, 2022 • 0 new comments

• REF/PERF: dont use hashtable in IndexEngine.__contains__

  #45192 commented on Jan 12, 2022 • 0 new comments

• Adding unixtime property to Timestamp and DatetimeIndex

  #45217 commented on Jan 12, 2022 • 0 new comments

• BUG: Fix lost precision when reading from Oracle Number column GH34988

  #45221 commented on Jan 12, 2022 • 0 new comments

• ENH: add kwargs `aliases` to `Styler.format_index` for overwriting index labels

  #45288 commented on Jan 16, 2022 • 0 new comments

• BUG: Categorical.view not accepting integer dtypes GH#25464

  #45300 commented on Jan 16, 2022 • 0 new comments