June 6, 2021 – June 13, 2021
Overview
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70 Pull requests merged by 21 people
-
CI: activate azure pipelines/github actions on 1.3.x
#41966 merged
Jun 13, 2021 -
Backport PR #41977 on branch 1.3.x (BLD: ignore multiple types of file in wheel)
#41979 merged
Jun 13, 2021 -
BLD: ignore multiple types of file in wheel
#41977 merged
Jun 13, 2021 -
Backport PR #41924: PERF: fix regression in reductions for boolean/integer data
#41963 merged
Jun 12, 2021 -
DOC: start v1.4.0 release notes
#41926 merged
Jun 12, 2021 -
DOC: Validator + converting array_like to array-like in docstrings
#41295 merged
Jun 12, 2021 -
CI: skip tests when only files in doc/web changes (github actions)
#41310 merged
Jun 12, 2021 -
ENH: Add online operations for EWM.mean
#41888 merged
Jun 12, 2021 -
CI: use pyarrow 0.17.1 instead of 0.17.0 for py37_macos build
#41948 merged
Jun 11, 2021 -
DOC: fix link to pickle in msgpack section
#41950 merged
Jun 11, 2021 -
[ArrayManager] Enable pytables IO by falling back to BlockManager
#41944 merged
Jun 11, 2021 -
DOC: update the msgpack IO section to not refer to pyarrow.serialize
#41899 merged
Jun 11, 2021 -
TYP: datetimelike
#41830 merged
Jun 11, 2021 -
DOC: add contributors to 1.3 release notes
#41922 merged
Jun 11, 2021 -
DOC: fix header level in 1.3 release notes
#41925 merged
Jun 11, 2021 -
PERF: fix regression in reductions for boolean/integer data
#41924 merged
Jun 11, 2021 -
DOC: reverse rolling window (#38627)
#41842 merged
Jun 11, 2021 -
TYP/BUG: fix CI
#41938 merged
Jun 11, 2021 -
BUG: inconsistent validation for get_indexer
#41918 merged
Jun 10, 2021 -
REF: de-duplicate IntervalIndex._intersection
#41929 merged
Jun 10, 2021 -
TYP: to_csv accepts IO[bytes] and fix FilePathOrBuffer
#41903 merged
Jun 10, 2021 -
BUG: Categorical.fillna with non-category tuple
#41914 merged
Jun 10, 2021 -
CLN: remove references of Travis
#41928 merged
Jun 10, 2021 -
BUG: IntervalIndex is_monotonic, get_loc, get_indexer_for, contains with np.nan
#41863 merged
Jun 10, 2021 -
REF: simplify indexes.base._maybe_cast_data_without_dtype
#41881 merged
Jun 10, 2021 -
Revert "PERF: reductions"
#41923 merged
Jun 10, 2021 -
PERF: reductions
#41911 merged
Jun 10, 2021 -
DOC clean up positional-args deprecation warnings in whatsnew
#41908 merged
Jun 10, 2021 -
REF: split out sorted_rank algo
#41910 merged
Jun 10, 2021 -
TST/CLN: test_cov_corr
#41886 merged
Jun 10, 2021 -
Revert "CI: Pin jinja2 to version lower than 3.0"
#41913 merged
Jun 10, 2021 -
Add py39 target in Black's configuration, bump Black to 21.5b2
#38376 merged
Jun 9, 2021 -
TYP: use from __future__ import annotations more - batch 1
#41892 merged
Jun 9, 2021 -
REF: split out grouped masked cummin/max algo
#41853 merged
Jun 9, 2021 -
PERF: nancorr_spearman fastpath
#41885 merged
Jun 9, 2021 -
TYP: use from __future__ import annotations more - batch 6
#41900 merged
Jun 9, 2021 -
TYP: use from __future__ import annotations more - batch 5
#41898 merged
Jun 9, 2021 -
TYP: use from __future__ import annotations more - batch 4
#41896 merged
Jun 9, 2021 -
TYP: use from __future__ import annotations more - batch 3
#41895 merged
Jun 9, 2021 -
TYP: use from __future__ import annotations more - batch 2
#41894 merged
Jun 9, 2021 -
Tst interval index NaN uniqueness
#41870 merged
Jun 9, 2021 -
REF: remove Index._convert_arr_indexer
#41884 merged
Jun 9, 2021 -
CLN/PERF: no need for kahan for int group_cumsum
#41874 merged
Jun 9, 2021 -
REF: de-duplicate symmetric_difference, _union
#41833 merged
Jun 9, 2021 -
BENCH: Remove unnecessary random seeds
#41889 merged
Jun 9, 2021 -
PERF: clipping with scalar
#41869 merged
Jun 9, 2021 -
whatsnew 1.3.0
#41747 merged
Jun 9, 2021 -
BUG: IntervalIndex.intersection
#41883 merged
Jun 9, 2021 -
PERF: nancorr_spearman
#41857 merged
Jun 9, 2021 -
REF: more explicit dtypes in strings.accessor
#41727 merged
Jun 9, 2021 -
REF: de-duplicate Index._intersection + MultiIndex._intersection
#41824 merged
Jun 8, 2021 -
REF: de-duplicate IntervalIndex setops
#41832 merged
Jun 8, 2021 -
API: make construct_array_type non-optional
#41862 merged
Jun 8, 2021 -
DOC: remove versionadded/changed:: 0.24
#41851 merged
Jun 8, 2021 -
TST: add ASV check for groupby with uint64 col
#41859 merged
Jun 8, 2021 -
Clean up ujson initialization
#41864 merged
Jun 8, 2021 -
TST/REF: split out group min/max tests
#41860 merged
Jun 8, 2021 -
PERF: is_bool_indexer
#41861 merged
Jun 8, 2021 -
BUG: Series[int].loc setitem with Series[int] results in Series[float]
#41644 merged
Jun 8, 2021 -
[ArrowStringArray] API: StringDtype parameterized by storage (python or pyarrow)
#39908 merged
Jun 8, 2021 -
DOC/BLD: update README.md, remove setuptools from dependency
#41818 merged
Jun 8, 2021 -
API: EA._can_hold_na -> EDtype.can_hold_na
#41654 merged
Jun 8, 2021 -
DOC/CLN versionadded etc for 1.3 -> 1.3.0
#41852 merged
Jun 8, 2021 -
docstrings: typos, clarity
#41845 merged
Jun 8, 2021 -
TYP: use annotations in strprime.pyi and timestamps.pyi
#41841 merged
Jun 8, 2021 -
DEPR: Timestamp.freq
#41586 merged
Jun 7, 2021 -
DEPR: Deprecated passing arguments as positional in pd.concat
#41718 merged
Jun 7, 2021 -
DOC: Whatsnew1.3 grammar
#41822 merged
Jun 7, 2021 -
doc: add highlight_quantile to style.rst
#41840 merged
Jun 7, 2021 -
DOC: sync doc/source/whatsnew/v1.2.5.rst with master
#41850 merged
Jun 7, 2021
45 Pull requests opened by 22 people
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DOC: Add .to_xyz to io docs
#41844 opened
Jun 6, 2021 -
BUG: DataFrame.at with CategoricalIndex
#41846 opened
Jun 7, 2021 -
BUG/ENH: group cummin/max handle skipna
#41854 opened
Jun 7, 2021 -
BUG: groupby.shift returns different columns when fill_value is specified
#41858 opened
Jun 7, 2021 -
ENH: add `environment`, e.g. "longtable", to `Styler.to_latex`
#41866 opened
Jun 8, 2021 -
ENH: drop_duplicates_index function to base series object.
#41868 opened
Jun 8, 2021 -
BUG: unstack with object dtype of tzaware timestamps
#41875 opened
Jun 8, 2021 -
Proof of concept for Copy-on-Write implementation
#41878 opened
Jun 8, 2021 -
REF: avoid mutating Series._values directly in setitem but defer to Manager method
#41879 opened
Jun 8, 2021 -
Replaced value assignment by location accessor.
#41880 opened
Jun 8, 2021 -
ENH: Add `drop_na` keyword to "to_json()" function
#41890 opened
Jun 9, 2021 -
[WIP] ENH: `Styler` `apply` and `applymap` over the index instead of the data
#41893 opened
Jun 9, 2021 -
BUG: to_hdf append string column to incompatible column
#41897 opened
Jun 9, 2021 -
Initial draft: from_dummies
#41902 opened
Jun 9, 2021 -
BUG: pytz.AmbiguousTimeError not caught in hypothesis test test_on_offset_implementations (GH41906)
#41907 opened
Jun 9, 2021 -
REF: simplify Series.__setitem__
#41912 opened
Jun 9, 2021 -
REF: de-duplicate _intersection, _difference
#41915 opened
Jun 10, 2021 -
REF: give rank1d/2d same nan filling
#41916 opened
Jun 10, 2021 -
PERF: cache _should_fallback_to_positional
#41917 opened
Jun 10, 2021 -
REF: de-duplicate Categorical _validate_foo_value
#41919 opened
Jun 10, 2021 -
BUG: Scalar assignment to empty dataframe with loc. Closes GH41891
#41921 opened
Jun 10, 2021 -
BUG/REF: use sorted_rank_1d for rank_2d
#41931 opened
Jun 10, 2021 -
TST: Add tests for numeric_only default behaviour (GH41351)
#41932 opened
Jun 10, 2021 -
BUG: CategoricalIndex.get_loc(np.nan)
#41933 opened
Jun 10, 2021 -
BUG: IntervalIndex.get_indexer with categorical both have nans
#41934 opened
Jun 10, 2021 -
CLN: Remove useless Validation functions
#41936 opened
Jun 10, 2021 -
STYLE: Use from future import annotations (pandas-dev#41901)
#41941 opened
Jun 11, 2021 -
TYP: make numpy.typing available from pandas._typing
#41945 opened
Jun 11, 2021 -
ENH: `sparse_columns` and `sparse_index` added to `Styler.to_html`
#41946 opened
Jun 11, 2021 -
BUG: take nans correctly into consideration in complex and tuple
#41952 opened
Jun 11, 2021 -
DOC: more cleanup of 1.3 release notes
#41954 opened
Jun 11, 2021 -
CLN: Replace FrameOrSeriesUnion annotation by DataFrame | Series
#41955 opened
Jun 11, 2021 -
REF: avoid accessing ._engine in Series/DataFrame
#41956 opened
Jun 11, 2021 -
REGR: Series[dt64/td64].astype(string)
#41958 opened
Jun 11, 2021 -
REF: avoid accessing index._engine in set_with_engine
#41959 opened
Jun 11, 2021 -
CLN: assert_index_equal & assert_class_equal
#41960 opened
Jun 11, 2021 -
CI: enable auto-cancel for GitHub Actions
#41962 opened
Jun 12, 2021 -
Bug in melt raising Error with dup columns as value vars
#41964 opened
Jun 12, 2021 -
DOC: 1.3.0 release notes addition and doc fix
#41968 opened
Jun 12, 2021 -
BUG: stacklevel for multidimensional indexing warning #31479
#41969 opened
Jun 12, 2021 -
ENH: nullables use Kleene logic for any/all reductions
#41970 opened
Jun 12, 2021 -
CI: mark window online test slow
#41971 opened
Jun 12, 2021 -
PERF: indexing on UInt64Index with int64s
#41972 opened
Jun 12, 2021 -
BUG: UInt64Index.where with int64 value
#41974 opened
Jun 12, 2021 -
REF: De-duplicate MultiIndex._get_indexer
#41976 opened
Jun 12, 2021
37 Issues closed by 13 people
-
API/DEPR: re-instate timedelta[non-unit] conversions as a no-op
#19225 closed
Jun 12, 2021 -
DOC: inconsistency in doc argument types
#40560 closed
Jun 12, 2021 -
CI / DOC: skip tests when only files in doc/ is changed
#41101 closed
Jun 12, 2021 -
pandas.read_ functions crashes on read from url with space characters
#17918 closed
Jun 12, 2021 -
Examples in MultiIndex.rename documentation do not call the function
#17334 closed
Jun 12, 2021 -
Inconsistent behaviour when dividing by zero
#17190 closed
Jun 12, 2021 -
API: add a more generic type checking function
#16768 closed
Jun 12, 2021 -
BUG: `max` and `min` returns incorrect result
#39607 closed
Jun 12, 2021 -
CI: intermittent segfaults on `macOS py37_macos` run
#41937 closed
Jun 11, 2021 -
Equivalent to the Excel fill handle
#22993 closed
Jun 11, 2021 -
DOC: Serialization recommendation is deprecated
#39956 closed
Jun 11, 2021 -
BUG: Index.astype does not localize to UTC first like Series.astype with datetime64[ns, tz] dtypes
#33401 closed
Jun 11, 2021 -
BUG: pd.unique treats 0 and False as equivalent
#18111 closed
Jun 11, 2021 -
ENH/PERF: Add cache='infer' to to_datetime
#18255 closed
Jun 11, 2021 -
API: Make 'D' & offsets.Day always operate as calendar day instead of 24 Hour
#22864 closed
Jun 11, 2021 -
DOC: example for doing a reversed rolling window
#38627 closed
Jun 11, 2021 -
BUG: IntervalIndex([np.nan, np.nan]).is_monotonic returns True
#41831 closed
Jun 10, 2021 -
BUG: read_json chunksize parameter does not work
#41905 closed
Jun 10, 2021 -
CI: Build documentation broken after jinja2 update to 3.0
#41450 closed
Jun 10, 2021 -
CI: submit_cache failures
#19574 closed
Jun 9, 2021 -
QST: ExtensionDtype made available with arguments to `astype` method
#41877 closed
Jun 9, 2021 -
Performance regression in series_methods.Clip.time_clip
#41434 closed
Jun 9, 2021 -
Add back skip_blank_lines to read_excel in pandas v>1.1.4
#39808 closed
Jun 9, 2021 -
ExtensionDtype.construct_array_type is not optional
#24860 closed
Jun 8, 2021 -
Performance regression uint64 groupby().min() in 0.25.1 vs. 0.24.2
#28122 closed
Jun 8, 2021 -
regression: ts64->int64
#31634 closed
Jun 8, 2021 -
API: Make _libs.lib.no_default a singleton
#40397 closed
Jun 8, 2021 -
Deprecate non-keyword arguments for methods with `inplace`
#41485 closed
Jun 8, 2021 -
ENH: Allow different senses of "distance" for method=nearest indexing
#41826 closed
Jun 8, 2021 -
ENH: Add option to surpress timezone warning
#41871 closed
Jun 8, 2021 -
DEPS: clarifying setuptools's status as a dependency
#41815 closed
Jun 8, 2021 -
BUG: Pie chart with categorical values fails
#41872 closed
Jun 8, 2021 -
API: EA._can_hold_na should be a dtype attribute, not EA
#40574 closed
Jun 8, 2021 -
ExtensionArray isin
#20617 closed
Jun 7, 2021 -
Alternative implementation for `.where` on EA-backed Indexes
#24144 closed
Jun 7, 2021 -
DEPR: remove freq attribute of Timestamp?
#15146 closed
Jun 7, 2021 -
BUG: Rounding not working
#41640 closed
Jun 6, 2021
31 Issues opened by 25 people
-
BUG: DataFrame/Series with PeriodIndex inconsistent deserialization with HDF5 - PyTables
#41978 opened
Jun 13, 2021 -
API: loc indexing with nested sequence raise on missing
#41975 opened
Jun 12, 2021 -
BUG: numpy.char funcs error with string array citing non-string array.
#41973 opened
Jun 12, 2021 -
ENH: Modify .any() to return Null if all values are null
#41967 opened
Jun 12, 2021 -
BUG: dropna('rows') changes index type even when no row was dropped
#41965 opened
Jun 12, 2021 -
RLS: 1.4/2.0
#41957 opened
Jun 11, 2021 -
BUG: nan-objects lookup fails in Python3.10
#41953 opened
Jun 11, 2021 -
DataFrame.melt fails if there are duplicate value_vars
#41951 opened
Jun 11, 2021 -
BUG: unpickle of Timestamp should not generate deprecation warning
#41949 opened
Jun 11, 2021 -
ENH: Give name to index column as argument when using `df.reset_index`
#41947 opened
Jun 11, 2021 -
API: Make 'D' & offsets.Day always operate as calendar day instead of 24 Hour
#41943 opened
Jun 11, 2021 -
BUG: initial prompt for reading .xlsx files misleadingly refers to xlrd, not openpyxl
#41942 opened
Jun 11, 2021 -
TST: Xfails in Python 3.10 CI
#41940 opened
Jun 11, 2021 -
CI: py 3.10 build failing
#41935 opened
Jun 10, 2021 -
BUG: pd.Grouper cannot be reused in some cases
#41930 opened
Jun 10, 2021 -
BUG: Timezones are not preserved in Series.mode() output
#41927 opened
Jun 10, 2021 -
ENH: Add subset to fillna
#41909 opened
Jun 9, 2021 -
BUG: pytz.AmbiguousTimeError not caught in hypothesis `test_on_offset_implementations`
#41906 opened
Jun 9, 2021 -
STYLE add check for future annotations
#41901 opened
Jun 9, 2021 -
BUG: Incorrect read_csv values for NaN when using regex sep argument
#41887 opened
Jun 9, 2021 -
BUG: Index.get_indexer_for with mixed tuples
#41882 opened
Jun 8, 2021 -
BUG: seemingly unexpected behavior with errrors='ignore' in json_normalize()
#41876 opened
Jun 8, 2021 -
PERF: performance regression in indexing UInt64Index with an array-like
#41873 opened
Jun 8, 2021 -
Timezone specification like +HHMM without colon gives incorrect minutes
#41865 opened
Jun 8, 2021 -
API: astype("string") behavior
#41856 opened
Jun 7, 2021 -
pandas.notnull documentation showing code examples from pandas.notna
#41855 opened
Jun 7, 2021 -
ENH: Specify how pandas infers dtype on objects
#41848 opened
Jun 7, 2021 -
BUG: Unable to create DateOffset from two dates
#41847 opened
Jun 7, 2021 -
BUG: `tseries.offsets.MonthEnd` is leaving out full 24h of period
#41843 opened
Jun 6, 2021 -
DOC: Input/Output page contains only input functions
#41839 opened
Jun 6, 2021
351 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.
-
RLS: 1.3
#40169 commented on
Jun 12, 2021 • 37 new comments -
ENH: Allow column grouping in DataFrame.plot
#29944 commented on
Jun 8, 2021 • 17 new comments -
ENH: New boundary inputs
#40628 commented on
Jun 13, 2021 • 15 new comments -
Parse IntervalArray and IntervalIndex from strings
#41451 commented on
Jun 9, 2021 • 15 new comments -
ENH: Fix `by` in DataFrame.plot.hist and DataFrame.plot.box
#28373 commented on
Jun 10, 2021 • 12 new comments -
ENH: NumericIndex for any numpy int/uint/float dtype
#41153 commented on
Jun 11, 2021 • 11 new comments -
API: allow nan-likes in StringArray constructor
#41412 commented on
Jun 9, 2021 • 11 new comments -
TYP: Numpy compatibility of definition of "array like"
#41807 commented on
Jun 11, 2021 • 6 new comments -
Performance regression in DataFrame reduction ops
#38592 commented on
Jun 11, 2021 • 5 new comments -
Enable server side cursors
#40796 commented on
Jun 12, 2021 • 5 new comments -
ENH: option to export df to Stata dataset with value labels
#41042 commented on
Jun 9, 2021 • 5 new comments -
_libs.hashtable.ismember incorrect with tuples containing nan
#41836 commented on
Jun 10, 2021 • 4 new comments -
RLS: 1.2.5
#40917 commented on
Jun 10, 2021 • 4 new comments -
BUG: OutOfBoundsTimedelta not raised for out-of-bounds Timedelta
#36615 commented on
Jun 12, 2021 • 4 new comments -
BUG: df[col] = arr should not overwrite data in df[col]
#35417 commented on
Jun 9, 2021 • 4 new comments -
EHN: multi-column explode
#40770 commented on
Jun 12, 2021 • 4 new comments -
TYP: Typing for ExtensionArray.__getitem__
#41258 commented on
Jun 12, 2021 • 4 new comments -
ENH: Read and write pandas attrs to parquet with pyarrow engine
#41545 commented on
Jun 7, 2021 • 4 new comments -
GH41457 Upgrade Bootstrap to v5.0
#41651 commented on
Jun 12, 2021 • 4 new comments -
BUG: Empty DataFrame(..., dtype='datetime64[ns]').quantile(..., axis=1) returns float64 dtype
#41694 commented on
Jun 11, 2021 • 4 new comments -
ENH: Method for selecting columns from DataFrameGroupBy (and maybe DataFrame)
#40322 commented on
Jun 7, 2021 • 3 new comments -
ENH: change the category type to use unsigned int for the internal pointers
#38918 commented on
Jun 7, 2021 • 3 new comments -
API: __getitem__[int] vs __setitem__[int] with Float64Index
#33469 commented on
Jun 10, 2021 • 3 new comments -
API: any/all logical operation for datetime-like dtypes
#34479 commented on
Jun 11, 2021 • 3 new comments -
TST/BUG: Unexpected warnings causing failures on master with fixed `assert_produces_warnings(None)` behavior
#38630 commented on
Jun 11, 2021 • 3 new comments -
ENH: Raise ParserWarning when length of names does not match length of data
#38587 commented on
Jun 12, 2021 • 3 new comments -
ENH: Add support for defaultdict as "dtype" in parser
#41664 commented on
Jun 10, 2021 • 3 new comments -
BUG: Ignore chartsheets
#41698 commented on
Jun 10, 2021 • 3 new comments -
DOC: Updates Index.any docstring from #40362
#41726 commented on
Jun 9, 2021 • 3 new comments -
ENH: retain attrs when concat dataframes
#41828 commented on
Jun 6, 2021 • 2 new comments -
BUG: use of partition_cols raises incompatibility between fastparquet & pyarrow
#39499 commented on
Jun 6, 2021 • 2 new comments -
BUG: Construction of Series with NAs and interval-of-datetime dtype raises error
#41805 commented on
Jun 7, 2021 • 2 new comments -
ENH: DataFrame.to_expr() method
#41837 commented on
Jun 7, 2021 • 2 new comments -
Plan for a native string dtype
#35169 commented on
Jun 8, 2021 • 2 new comments -
BUG: to_sql performance decreases dramatically with more than 10 columns (SQL Server)
#40721 commented on
Jun 9, 2021 • 2 new comments -
to_csv - allow to create folders.
#24306 commented on
Jun 10, 2021 • 2 new comments -
to_datetime() with errors=coerce and without return different values
#25143 commented on
Jun 11, 2021 • 2 new comments -
REGR: Change to Series[dt64/td64].astype("string")` behavior on master
#41409 commented on
Jun 11, 2021 • 2 new comments -
ENH/PERF: allow mask to be optional in our masked ExtensionArrays
#30435 commented on
Jun 11, 2021 • 2 new comments -
API: setitem copy/view behavior ndarray vs Categorical vs other EA
#38896 commented on
Jun 11, 2021 • 2 new comments -
multi-dimensional-indexing deprecation warning has inconsistent stack level.
#31479 commented on
Jun 11, 2021 • 2 new comments -
BUG: Concat automatically sorts index when axis=1
#37937 commented on
Jun 12, 2021 • 2 new comments -
Regression in .loc with missing key on Categorical axis
#21705 commented on
Jun 12, 2021 • 2 new comments -
DataFrame.__setitem__ performance regression with object dtype
#19299 commented on
Jun 12, 2021 • 2 new comments -
DOC : Updated the comparison with spreadsheets with GroupBy
#39965 commented on
Jun 9, 2021 • 2 new comments -
DOC: Reindexing behaviour of dataframe column-assignment missing
#40985 commented on
Jun 10, 2021 • 2 new comments -
ENH: coalesce-method (upgrade for update/combine_first)
#22812 commented on
Jun 6, 2021 • 1 new comment -
core.DataFrame(or Series).combine_first better doc string
#41704 commented on
Jun 6, 2021 • 1 new comment -
TYP: IntervalIndex.right/left might be infered as function
#41588 commented on
Jun 6, 2021 • 1 new comment -
ENH: get_rename_function: add support for __getitem__ override
#39921 commented on
Jun 6, 2021 • 1 new comment -
Adding Power support to the package -Installation of Condo not available for ppc64le
#39746 commented on
Jun 6, 2021 • 1 new comment -
ENH: Apply function on a column easily, maintaining fluent interface
#38229 commented on
Jun 6, 2021 • 1 new comment -
QST: how to run Pandas tests involving Numba on installed package
#37939 commented on
Jun 6, 2021 • 1 new comment -
ENH: Using transparentpath in read_csv
#41838 commented on
Jun 6, 2021 • 1 new comment -
QST: to_csv slow in python 3 compared to python 2
#41468 commented on
Jun 6, 2021 • 1 new comment -
ENH: Improve assertion message for `assert_frame_equal`
#39967 commented on
Jun 6, 2021 • 1 new comment -
BUG (Performance): Performance of to_csv varies significantly depending on when/how index is set
#37484 commented on
Jun 6, 2021 • 1 new comment -
BUG: Behaviour of numeric_only in aggregation methods like sum depends on length of dataframe.
#41351 commented on
Jun 7, 2021 • 1 new comment -
BUG: New param [use_nullable_dtypes] of pd.read_parquet() can't handle empty parquet file
#41241 commented on
Jun 7, 2021 • 1 new comment -
BUG: total_seconds() method returns zero for timedeltas smaller then 1 microsecond
#40946 commented on
Jun 7, 2021 • 1 new comment -
BUG: groupby.shift return keys filled with `fill_value` when `fill_value` is specified
#41556 commented on
Jun 7, 2021 • 1 new comment -
df.drop_duplicates() not working as expected
#32993 commented on
Jun 8, 2021 • 1 new comment -
BUG: Addition operation between NaN and list returns NaN
#41764 commented on
Jun 8, 2021 • 1 new comment -
DOC/CI: fix doc build with Python 3.9
#41096 commented on
Jun 8, 2021 • 1 new comment -
API/ENH: Accept nan-likes in StringArray constructor
#40839 commented on
Jun 8, 2021 • 1 new comment -
BUG: Date offset on numpy datetime64 does not work for week and month offsets
#41617 commented on
Jun 8, 2021 • 1 new comment -
BUG: dtype not working with datetime64
#34928 commented on
Jun 8, 2021 • 1 new comment -
TYP: clean notations in the wrong place
#39108 commented on
Jun 8, 2021 • 1 new comment -
Proposal for future copy / view semantics in indexing operations
#36195 commented on
Jun 8, 2021 • 1 new comment -
Feature Request: read_excel sheet_name argument
#19842 commented on
Jun 9, 2021 • 1 new comment -
DOC: whatsnew format for minor enhancements/bug-fixes
#41748 commented on
Jun 9, 2021 • 1 new comment -
DISCUSS Rename master to main?
#39577 commented on
Jun 9, 2021 • 1 new comment -
API: Categorical constructor with dtype raise instead of casting to NA
#40996 commented on
Jun 9, 2021 • 1 new comment -
DEPR: SeriesGroupBy._aggregate_named
#41090 commented on
Jun 9, 2021 • 1 new comment -
BUG: Empty object column writes to parquet as INT32 instead of BINARY L:STRING
#37083 commented on
Jun 9, 2021 • 1 new comment -
API: Standardize ExtensionDtype subtype name
#22224 commented on
Jun 9, 2021 • 1 new comment -
Code for list of partial indexers should be in MultiIndex.get_indexer
#27181 commented on
Jun 10, 2021 • 1 new comment -
DOC: fix the incorrect doc style in 1.2.1
#39290 commented on
Jun 10, 2021 • 1 new comment -
ENH: to_dict(orient="index", into=T) returns T[K, dict], expecting T[K, T]
#34109 commented on
Jun 10, 2021 • 1 new comment -
DateFormatter('%Y') for x-axis labels gives strange output for a specific date value
#26253 commented on
Jun 10, 2021 • 1 new comment -
BUG: Never end up with numpy string dtypes
#39566 commented on
Jun 11, 2021 • 1 new comment -
CI: sql tests failures casued by pymysql
#36465 commented on
Jun 11, 2021 • 1 new comment -
Make ExtensionDtype.construct_array_type a regular method
#36126 commented on
Jun 11, 2021 • 1 new comment -
API: bool(pd.NA)
#38224 commented on
Jun 11, 2021 • 1 new comment -
CI: DeprecationWarning in `tests/io/json/test_json_table_schema.py` and `tests/io/json/test_pandas.py`
#35661 commented on
Jun 11, 2021 • 1 new comment -
BUG: Pandas 1.0.5 → 1.1.0 behavior change on DataFrame.apply() where func returns tuple
#35518 commented on
Jun 11, 2021 • 1 new comment -
CI/COMPAT: PyUnicode_FromUnicode is deprecated failure on 3.9 CI
#34881 commented on
Jun 11, 2021 • 1 new comment -
Inconsistent output in GroupBy.apply returning a DataFrame
#34809 commented on
Jun 11, 2021 • 1 new comment -
pd.read_table: Using space as delimiter on file with trailing space gives cryptic error
#21768 commented on
Jun 11, 2021 • 1 new comment -
Can't sort DataFrame when level=[] and sort_remaining=False
#25831 commented on
Jun 11, 2021 • 1 new comment -
Series iteration and to_dict methods *sometimes* return underlying storage type vs. Python object
#25969 commented on
Jun 11, 2021 • 1 new comment -
pd.Timestamp.isoformat does not implement keyword timespec
#26131 commented on
Jun 11, 2021 • 1 new comment -
DEPR: pandas/core
#27522 commented on
Jun 11, 2021 • 1 new comment -
PERF: groupby with many empty groups memory blowup
#30552 commented on
Jun 11, 2021 • 1 new comment -
REGR: setting column with setitem should not modify existing array inplace
#33457 commented on
Jun 11, 2021 • 1 new comment -
BUG: .at/.iat and Series.__setitem__ do not upcast int to float
#20643 commented on
Jun 11, 2021 • 1 new comment -
Various methods don't call call __finalize__
#28283 commented on
Jun 11, 2021 • 1 new comment -
BUG: mask method fails on Timedelta series with numpy 1.20
#39548 commented on
Jun 12, 2021 • 1 new comment -
Pandas different between Python 2.7 and Python 3.5
#16380 commented on
Jun 12, 2021 • 1 new comment -
BUG: groupby.rank with non-unique index groupers
#16577 commented on
Jun 12, 2021 • 1 new comment -
Unexpected result when setting a row by a dict
#16724 commented on
Jun 12, 2021 • 1 new comment -
df.stack() still misbehaving in unsorted case
#16925 commented on
Jun 12, 2021 • 1 new comment -
Ambiguous behaviour when `transform` `groupby` with `NaN`s
#17093 commented on
Jun 12, 2021 • 1 new comment -
Aggregate mean over TimeDelta column
#17382 commented on
Jun 12, 2021 • 1 new comment -
Concat on non-identical categories in categorical indexes raises TypeError
#17629 commented on
Jun 12, 2021 • 1 new comment -
.astype('object') misbehaves on Categorical containing Timestamp
#18024 commented on
Jun 12, 2021 • 1 new comment -
Comparison of categorical with tuple generates wrong results
#18050 commented on
Jun 12, 2021 • 1 new comment -
df autosorts rows on construction with OrderedDict of OrderedDicts
#18166 commented on
Jun 12, 2021 • 1 new comment -
Categorical.replace() unexpectedly returns non-categorical
#18250 commented on
Jun 12, 2021 • 1 new comment -
errors and inconsistent behaviour when using a DataFrame or a boolean Series as an index
#18579 commented on
Jun 12, 2021 • 1 new comment -
ddof for np.std in df.agg changes depending on how given & lambda expression does not work correctly in a list of functions
#18734 commented on
Jun 12, 2021 • 1 new comment -
DatetimeIndex comparison with ndim>1 incorrect or raises
#19088 commented on
Jun 12, 2021 • 1 new comment -
reset_index() doesn't work with CategoricalIndex columns
#19136 commented on
Jun 12, 2021 • 1 new comment -
Groupby.mode() - feature request
#19254 commented on
Jun 12, 2021 • 1 new comment -
Feature request: Let reindex fill with per-column methods
#20513 commented on
Jun 13, 2021 • 1 new comment -
BUG: Join behaved like an inner join when only one side had MultiIndex
#37211 commented on
Jun 8, 2021 • 1 new comment -
#31793 Add support for subtracting datetime from Timestamp
#37329 commented on
Jun 8, 2021 • 1 new comment -
BUG: Dtype was not changed when float was assignt to int column
#37680 commented on
Jun 8, 2021 • 1 new comment -
BUG: Bug in loc did not change dtype when complete column was assigned
#37749 commented on
Jun 8, 2021 • 1 new comment -
BUG: Bug in DataFrame.loc for setitem changed dtype when setting more than one column
#37798 commented on
Jun 8, 2021 • 1 new comment -
ENH: str extract with default value
#38003 commented on
Jun 8, 2021 • 1 new comment -
BUG: cumulative functions with ea dtype not handling NA correctly and casting to object
#39483 commented on
Jun 8, 2021 • 1 new comment -
BUG: Breaking change to offsets.pyx - quarter offset classes
#39890 commented on
Jun 10, 2021 • 1 new comment -
REF: setitem_with_indexer DataFrame always go through split_path
#40380 commented on
Jun 12, 2021 • 1 new comment -
ENH: Make to_csv('filename.csv.zip') compress the output
#40387 commented on
Jun 8, 2021 • 1 new comment -
[ENH] introducing IntpHashMap and making unique_label_indices use intp
#40653 commented on
Jun 11, 2021 • 1 new comment -
TST: add test for Index.where when needing to cast to object dtype
#40888 commented on
Jun 11, 2021 • 1 new comment -
TST: GH39443 - categorical datetime concat
#41061 commented on
Jun 7, 2021 • 1 new comment -
BUG: CustomBusinessMonthBegin(End) sometimes ignores extra offset (GH41356)
#41488 commented on
Jun 9, 2021 • 1 new comment -
CI: sdist test #39417
#41685 commented on
Jun 12, 2021 • 1 new comment -
Improve Development Accesibility - Devcontainer [part 1 / 2]
#41721 commented on
Jun 10, 2021 • 1 new comment -
BUG: wrong exception when slicing on TimedeltaIndex
#41821 commented on
Jun 7, 2021 • 1 new comment -
BUG: cannot install Pandas on mac Big Sur 11.1 M1 - Python 3.9
#41679 commented on
Jun 6, 2021 • 0 new comments -
BUG: very very slow when append long dictionary into HDF5 file
#41616 commented on
Jun 6, 2021 • 0 new comments -
BUG: AttributeError raised when reading from excel file containing chart sheet
#41448 commented on
Jun 6, 2021 • 0 new comments -
BUG: df.hist by column alongside with specified columns
#41188 commented on
Jun 6, 2021 • 0 new comments -
BUG: `HDFStore.select` does not handle arithmetic operators correctly
#41100 commented on
Jun 6, 2021 • 0 new comments -
VTKF files in pandas?
#41080 commented on
Jun 6, 2021 • 0 new comments -
API: make CategoricalIndex._concat consistent with pd.concat
#41626 commented on
Jun 6, 2021 • 0 new comments -
BUG: pd.array(floatdata, dtype=np.inty) should use astype_nansafe
#41724 commented on
Jun 6, 2021 • 0 new comments -
TYP/DOC: Use Protocols for file-like objects in read/to_*
#41610 commented on
Jun 6, 2021 • 0 new comments -
QST: Unable to install the pandas into the linux environment (Raspberry Pi 4)
#41581 commented on
Jun 6, 2021 • 0 new comments -
BUG: The frequency of a DatetimeIndex is lost when using to_parquet with pyarrow
#41543 commented on
Jun 6, 2021 • 0 new comments -
BUG: Infinite recursion when creating Series with arrow-backed extension dtype and no data
#41377 commented on
Jun 6, 2021 • 0 new comments -
BUG: DataFrame.to_hdf cannot handle data_columns for a column named 'index'
#41437 commented on
Jun 6, 2021 • 0 new comments -
BUG: histogram plot ignores `xlabel` and `ylabel` arguments
#41233 commented on
Jun 6, 2021 • 0 new comments -
BUG: json_normalize does not handle combining nested record_path and nested meta as expected
#40514 commented on
Jun 6, 2021 • 0 new comments -
PERF: Performance Regression GroupBy apply
#40041 commented on
Jun 6, 2021 • 0 new comments -
BUG: Getting garbled characters when using pd.to_clipboard()
#39764 commented on
Jun 6, 2021 • 0 new comments -
BUG: SQLAlchemy Date() classes still written as DateTimes
#39703 commented on
Jun 6, 2021 • 0 new comments -
ENH: fnmatch for easier wildcard str matching
#39565 commented on
Jun 6, 2021 • 0 new comments -
BUG: Read from S3 fails after assuming an AWS IAM role
#39325 commented on
Jun 6, 2021 • 0 new comments -
BUG: Pandas plot ignores timezone information
#38608 commented on
Jun 6, 2021 • 0 new comments -
BUG: json_normalize() upcasts column with missing values
#37935 commented on
Jun 6, 2021 • 0 new comments -
API: make CategoricalDtype.__eq__ stricter
#37929 commented on
Jun 6, 2021 • 0 new comments -
BUG: json_normalize cannot parse metadata fields list type
#37782 commented on
Jun 6, 2021 • 0 new comments -
API: should setitem-with-expansion _ever_ raise?
#37774 commented on
Jun 6, 2021 • 0 new comments -
ENH: should a sequence of integers be a valid input to BooleanArray?
#37614 commented on
Jun 6, 2021 • 0 new comments -
BUG: Excessive memory usage loading Dataframe with mixed data types from HDF5 file saved in "table" format
#37441 commented on
Jun 6, 2021 • 0 new comments -
BUG: UnicodeDecodeError: 'unicodeescape' codec can't decode byte 0x5c at end of string
#37414 commented on
Jun 6, 2021 • 0 new comments -
SUMM: Consistent Casting and Length Checks in Ops
#37086 commented on
Jun 6, 2021 • 0 new comments -
BUG:dataframe to_sql using cx_Oracle
#36926 commented on
Jun 6, 2021 • 0 new comments -
to_csv fails silently when writing to S3 (only 1 time out of 50,000)
#36828 commented on
Jun 6, 2021 • 0 new comments -
ENH: Add Option to `.plot.scatter` to Label the Points based on Index name or supplied sequence
#36598 commented on
Jun 6, 2021 • 0 new comments -
ENH: change display.width to None by default
#36578 commented on
Jun 6, 2021 • 0 new comments -
BUG: When checking equality of column dtype - TypeError: Cannot interpret 'datetime64[ns, UTC]' as a data type
#39839 commented on
Jun 6, 2021 • 0 new comments -
Mystery: bi-modal benchmarks
#40066 commented on
Jun 6, 2021 • 0 new comments -
Numpy Import Error
#41213 commented on
Jun 6, 2021 • 0 new comments -
BUG: MultiIndex.unique incorrect when NA value is present
#41823 commented on
Jun 6, 2021 • 0 new comments -
BUG: AttributeError: 'NoneType' object has no attribute 'get' on __version__ = v.get("closest-tag", v["version"])
#41782 commented on
Jun 6, 2021 • 0 new comments -
ENH: How about "cannot reindex from an index with duplicate values"?
#40622 commented on
Jun 6, 2021 • 0 new comments -
BUG: Occasional "tokenizing data error" when reading in large files with read_csv()
#40587 commented on
Jun 6, 2021 • 0 new comments -
BUG: Inconsistent rounding up and rounding down in Timestamp.round (v1.2.3)
#40315 commented on
Jun 6, 2021 • 0 new comments -
BUG: to_sql not properly escaping column names postgresql
#40183 commented on
Jun 6, 2021 • 0 new comments -
Performance regression in reindex.Fillna.time_float_32, etc.
#40123 commented on
Jun 6, 2021 • 0 new comments -
BUG: numpy.datetime64 unit counts ignored
#39977 commented on
Jun 6, 2021 • 0 new comments -
ENH: consider using sets and not maps for isin, unique and duplicated
#39799 commented on
Jun 6, 2021 • 0 new comments -
BUG: IndexError when plotting empty dataframe subset with DatetimeIndex on an existing axis
#39705 commented on
Jun 6, 2021 • 0 new comments -
DOC: Basic indexing on axis with Multiindex
#39683 commented on
Jun 6, 2021 • 0 new comments -
ENH: support reading from several files for read_* functions
#39435 commented on
Jun 6, 2021 • 0 new comments -
BUG: read_json(orient='table') converts 'float64' to 'datetime64' datatype if the column name ends with '_time'
#39430 commented on
Jun 6, 2021 • 0 new comments -
BUG: Performance regression to_csv when formatting datatime index
#39413 commented on
Jun 6, 2021 • 0 new comments -
BUG: to_parquet corrupting temporary files
#37257 commented on
Jun 6, 2021 • 0 new comments -
QST: Can to_json return results as a dictionary?
#37785 commented on
Jun 6, 2021 • 0 new comments -
Dataframe.sum() returns an error with MultiIndex columns and skipna=False
#37622 commented on
Jun 6, 2021 • 0 new comments -
ENH: Implement '_period_dtype_code' attribute to 'pandas._libs.tslibs.offsets.MonthBegin'
#38859 commented on
Jun 6, 2021 • 0 new comments -
BUG: Unexpected output of `to_json` for `complex` data
#41174 commented on
Jun 6, 2021 • 0 new comments -
ENH adding metadata argument to DataFrame.to_parquet
#20521 commented on
Jun 7, 2021 • 0 new comments -
BUG: DataFrame constructor with UserList dataclass broken by upgrade to 1.1.0
#41682 commented on
Jun 7, 2021 • 0 new comments -
Axis behaviour not consistent for df.interpolate for pad with `limit_area` passed.
#41813 commented on
Jun 7, 2021 • 0 new comments -
BUG: `round()` for 5e5 ms should be `ceil()`
#41796 commented on
Jun 7, 2021 • 0 new comments -
WEB: Upgrade Bootstrap from v4.0 to v5.0
#41457 commented on
Jun 7, 2021 • 0 new comments -
Bounds checks for IntegerArray
#21796 commented on
Jun 7, 2021 • 0 new comments -
BUG: groupby().agg( ) with min/max on Int64 leads to incorrect results
#41743 commented on
Jun 8, 2021 • 0 new comments -
DEPR: `DataFrame.to_latex()` in favour of `Styler.to_latex()`
#41649 commented on
Jun 8, 2021 • 0 new comments -
ENH: built-in shift function that shifts each row by a different period, given by a Series.
#41385 commented on
Jun 8, 2021 • 0 new comments -
BUG: merge_asof result index type not set
#41171 commented on
Jun 8, 2021 • 0 new comments -
DOC: Wrong examples
#40362 commented on
Jun 8, 2021 • 0 new comments -
BUG: Series constructor with nullable unsigned integer dtype fails with large number
#38798 commented on
Jun 8, 2021 • 0 new comments -
REGR: passing dask arrays to Series or DataFrame
#38645 commented on
Jun 8, 2021 • 0 new comments -
ENH: consistency of input args for boundaries
#40245 commented on
Jun 8, 2021 • 0 new comments -
API/BUG: Series(floating, dtype=intlike) ignores dtype, DataFrame casts
#40110 commented on
Jun 8, 2021 • 0 new comments -
BUG: 2D ndarray of dtype 'object' is always copied upon construction
#39263 commented on
Jun 8, 2021 • 0 new comments -
ENH: add string method remove prefix and suffix, python 3.9
#36944 commented on
Jun 8, 2021 • 0 new comments -
DataFrame.astype does not handle multiple timezone aware Timestamps
#32581 commented on
Jun 8, 2021 • 0 new comments -
astype not converting timedelta and datetime strings
#22100 commented on
Jun 8, 2021 • 0 new comments -
ENH: parallelize DataFrame.corr
#40956 commented on
Jun 8, 2021 • 0 new comments -
BUG: TypeError when trying to find intersection between MultiIndex and array since 1.2.0
#39699 commented on
Jun 9, 2021 • 0 new comments -
Slicing Datetime MultiIndex with string or datetime.date slices
#15906 commented on
Jun 10, 2021 • 0 new comments -
DEPR: `DataFrame.to_html` in favour of `Styler.to_html`
#41693 commented on
Jun 11, 2021 • 0 new comments -
ENH: name(s) argument for reset_index?
#6878 commented on
Jun 11, 2021 • 0 new comments -
Refactor - ArrayManager overview issue
#39146 commented on
Jun 11, 2021 • 0 new comments -
DOC: add comparison to spreadsheets
#38990 commented on
Jun 11, 2021 • 0 new comments -
ENH: Multi-Column explode
#39240 commented on
Jun 11, 2021 • 0 new comments -
BUG: Loc changes dtype when condition is completly False
#37550 commented on
Jun 11, 2021 • 0 new comments -
BUG: Index.get_indexer_non_unique misbehaves when index contains multiple nan
#35392 commented on
Jun 11, 2021 • 0 new comments -
API: inconsistent return format of groupby apply
#13056 commented on
Jun 11, 2021 • 0 new comments -
DataFrame.groupby.apply returns different results with copy lambda functions.
#14927 commented on
Jun 11, 2021 • 0 new comments -
groupby/apply behaves different if a column is timezone-aware or not
#27212 commented on
Jun 11, 2021 • 0 new comments -
Object dtype gives ValueError in _maybe_cast_with_dtype
#32413 commented on
Jun 11, 2021 • 0 new comments -
Very frustrating not to be able to apply per-column date formats exporting to Excel
#30275 commented on
Jun 11, 2021 • 0 new comments -
Enhancement: Exclude "callable" classes (and subclasses) from callable() calls
#19654 commented on
Jun 11, 2021 • 0 new comments -
DOC: improve docs for broadcasting behavior
#18857 commented on
Jun 11, 2021 • 0 new comments -
QST: Misleading SettingWithCopyWarning when assigning on result of DataFrame.dropna?
#39448 commented on
Jun 12, 2021 • 0 new comments -
BUG: DataFrame.loc with a MultiIndex does not always collapse scalar levels
#10552 commented on
Jun 12, 2021 • 0 new comments -
DOC: document level-dropping for empty columns
#11424 commented on
Jun 12, 2021 • 0 new comments -
Pandas doesn't always cast strings to int consistently when using .isin()
#24918 commented on
Jun 12, 2021 • 0 new comments -
Unexpected behavior of the str attribute which is working with Series of list
#25240 commented on
Jun 12, 2021 • 0 new comments -
result from groupby / nlargest with data frame with one row does not include the groupby key in the resulting index
#16345 commented on
Jun 12, 2021 • 0 new comments -
pd.crosstab, categorical data and missing instances
#16367 commented on
Jun 12, 2021 • 0 new comments -
API/BUG: hashing of datetimes is based on UTC values
#16372 commented on
Jun 12, 2021 • 0 new comments -
pandas resample weekly and interpolate - wrong results
#16381 commented on
Jun 12, 2021 • 0 new comments -
DataFrame.plot(): changing position of legend with secondary_y removes legend entries
#16385 commented on
Jun 12, 2021 • 0 new comments -
IndexError raised on invalid csv file
#16393 commented on
Jun 12, 2021 • 0 new comments -
Incoherent behavior when ambiguously indexing MultiIndexed DataFrame with slice or list
#16396 commented on
Jun 12, 2021 • 0 new comments -
DOC: add section on Interval
#16400 commented on
Jun 12, 2021 • 0 new comments -
More memory efficient hash tables
#16440 commented on
Jun 12, 2021 • 0 new comments -
Suggestion: changing default `float_format` in `DataFrame.to_csv()`
#16452 commented on
Jun 12, 2021 • 0 new comments -
BUG: Index values not read-only
#16453 commented on
Jun 12, 2021 • 0 new comments -
API: merge will cast keys to min dtype, rather than upcast for mixed (integer) dtypes
#16480 commented on
Jun 12, 2021 • 0 new comments -
False positive SettingWithCopyWarning when just taking subset of columns
#16550 commented on
Jun 12, 2021 • 0 new comments -
DOC: pivot function
#16578 commented on
Jun 12, 2021 • 0 new comments -
Applying on empty DataFrame returns different types
#16621 commented on
Jun 12, 2021 • 0 new comments -
API / BUG: How do we differentiate between -9223372036854775808 and iNaT?
#16674 commented on
Jun 12, 2021 • 0 new comments -
PERF: groupby-diff
#16706 commented on
Jun 12, 2021 • 0 new comments -
Unexpected results creating an empty Series
#16737 commented on
Jun 12, 2021 • 0 new comments -
API: provide a to_enum method for Categorical dtypes?
#16749 commented on
Jun 12, 2021 • 0 new comments -
The exceptions from to_datetime(errors='raise') could include information about the exception
#16757 commented on
Jun 12, 2021 • 0 new comments -
numpy vs pandas: different estimation of covariance in presence of nan values
#16837 commented on
Jun 12, 2021 • 0 new comments -
ENH: .drop_duplicates along the columns axis (axis=1)
#16868 commented on
Jun 12, 2021 • 0 new comments -
ENH: DataFrame.insert should allow for negative loc parameter
#16872 commented on
Jun 12, 2021 • 0 new comments -
ERR: Remove bitwise operations on dtype=object?
#16873 commented on
Jun 12, 2021 • 0 new comments -
isin() returns different results than eq() when mixing dtypes of comparators
#16938 commented on
Jun 12, 2021 • 0 new comments -
COMPAT: safe argsort in Index/Series
#17010 commented on
Jun 12, 2021 • 0 new comments -
Asymmetric behavior between index and columns when getting incomplete label
#17029 commented on
Jun 12, 2021 • 0 new comments -
DOC: use shared_docs for isna/notna & isnull/notnull
#17096 commented on
Jun 12, 2021 • 0 new comments -
Why does autocorrelation_plot() generate plots where auto-correlation proportionally decrease with lag?
#17098 commented on
Jun 12, 2021 • 0 new comments -
Unstacking a MultiIndex with integer names is ambiguous
#17123 commented on
Jun 12, 2021 • 0 new comments -
Feature Request: pd.DataFrame drop method to include function support
#17129 commented on
Jun 12, 2021 • 0 new comments -
Series.reindex() does nothing
#17132 commented on
Jun 12, 2021 • 0 new comments -
ax.set_xticklabels() gives digit-shifted results
#17161 commented on
Jun 12, 2021 • 0 new comments -
DISCUSSION: Add format parameter to .astype when converting to str dtype
#17211 commented on
Jun 12, 2021 • 0 new comments -
[DOC] Clarify DataFrame.transform vs .applymap
#17212 commented on
Jun 12, 2021 • 0 new comments -
Index Constructors inferring output from data
#17246 commented on
Jun 12, 2021 • 0 new comments -
pd.Timestamp behavior/output differences caused by space character placement in the parsed string
#17265 commented on
Jun 12, 2021 • 0 new comments -
TypeError: unhashable type: 'dict' when using apply/transform?
#17309 commented on
Jun 12, 2021 • 0 new comments -
GroupBy key does not get returned to output after transform operation on entire dataframe
#17350 commented on
Jun 12, 2021 • 0 new comments -
Method series.plot.hist doesn't work with date/datetime values
#17372 commented on
Jun 12, 2021 • 0 new comments -
Method series.hist doesn't have a rot parameter
#17373 commented on
Jun 12, 2021 • 0 new comments -
pd.DataFrame.__deepcopy__ is broken
#17406 commented on
Jun 12, 2021 • 0 new comments -
PERF: to_datime fastpath for %Y%m%d is slower
#17410 commented on
Jun 12, 2021 • 0 new comments -
API: Default handling of nans in sum and add methods is inconsistent
#17416 commented on
Jun 12, 2021 • 0 new comments -
Inconsistent results for groupby on multiple columns with NaN value
#17445 commented on
Jun 12, 2021 • 0 new comments -
malformed index when reading csv with multiindex
#17576 commented on
Jun 12, 2021 • 0 new comments -
CategoricalDtype follows after #16015
#17635 commented on
Jun 12, 2021 • 0 new comments -
Simultaneously melt multiple columns
#17676 commented on
Jun 12, 2021 • 0 new comments -
Groupy chunks are garbage-collected even if still referenced
#17718 commented on
Jun 12, 2021 • 0 new comments -
Accept dictionaries for mapping categories in Categorical Data
#17719 commented on
Jun 12, 2021 • 0 new comments -
DataFrame.plot() with mplstyle file option axes.grid.axis: y behaves like axes.grid.axis: both
#17725 commented on
Jun 12, 2021 • 0 new comments -
dropna(subset=...) does not accept incomplete key
#17737 commented on
Jun 12, 2021 • 0 new comments -
DatetimeIndex selection with .loc is orders of magnitude slower than [] on ordered frame
#17754 commented on
Jun 12, 2021 • 0 new comments -
DOC: Order of groups in groupby and head method
#17775 commented on
Jun 12, 2021 • 0 new comments -
DOC: add use cases / when to use PeriodIndex vs. DatetimeIndex
#17807 commented on
Jun 12, 2021 • 0 new comments -
Please add force_suffixes to pandas.merge()
#17834 commented on
Jun 12, 2021 • 0 new comments -
ENH: sort=bool keyword argument for index.difference
#17839 commented on
Jun 12, 2021 • 0 new comments -
resample().interpolate() should not fill pre-existing NaNs
#17868 commented on
Jun 12, 2021 • 0 new comments -
stack() casts to float when called on levels not requiring it
#17886 commented on
Jun 12, 2021 • 0 new comments -
Wrong behavior and/or error message when assigning row with empty columns
#17895 commented on
Jun 12, 2021 • 0 new comments -
API: should Series.get be strictly label based or allow positional?
#17928 commented on
Jun 12, 2021 • 0 new comments -
MultiIndex with NaNs reported as non sorted
#17931 commented on
Jun 12, 2021 • 0 new comments -
BUG: select_dtypes return unexpected results when assigning a column by subtraction from original ones
#17945 commented on
Jun 12, 2021 • 0 new comments -
DataFrame.apply documentation needs upgrade
#17972 commented on
Jun 12, 2021 • 0 new comments -
DataFrameGroupBy does not support partial indexing
#17977 commented on
Jun 12, 2021 • 0 new comments -
Bar Plot Does Not Cycle Through Colors
#18006 commented on
Jun 12, 2021 • 0 new comments -
DataFrame.interpolate() failes with complex dtype
#18009 commented on
Jun 12, 2021 • 0 new comments -
Pandas pivot_table MultiIndex and dropna=False generates all combinations of modalities instead of keeping existing one only
#18030 commented on
Jun 12, 2021 • 0 new comments -
Styling console/terminal output
#18066 commented on
Jun 12, 2021 • 0 new comments -
DataFrame.rolling does nothing when values are in a list
#18129 commented on
Jun 12, 2021 • 0 new comments -
DataFrame replace slow on DataFrames containing strings when using use_inf_as_null option
#18176 commented on
Jun 12, 2021 • 0 new comments -
Feature to read csv from hdfs:// URL
#18199 commented on
Jun 12, 2021 • 0 new comments -
DataFrame.groupy renames columns when given a list of tuples - undocumented behavior
#18220 commented on
Jun 12, 2021 • 0 new comments -
pandas.MultiIndex.reorder_levels has no inplace argument
#18246 commented on
Jun 12, 2021 • 0 new comments -
Numbers --> strings conversion - unexpected results (read_html)
#18342 commented on
Jun 12, 2021 • 0 new comments -
df.plot() could cause "ValueError: year XXXXX is out of range" if matplotlib.dates.AutoDateLocator is used
#18344 commented on
Jun 12, 2021 • 0 new comments -
high-freq properties of low-freq Periods
#18378 commented on
Jun 12, 2021 • 0 new comments -
df.plot bars with different colors depending on values
#18449 commented on
Jun 12, 2021 • 0 new comments -
Problems plotting resampled time series when using loffset
#18467 commented on
Jun 12, 2021 • 0 new comments -
[feature] Add a from_dict method for MultiIndex construction
#18470 commented on
Jun 12, 2021 • 0 new comments -
Make pd.Series(index=values) equivalent to pd.Series(index=pd.Index(values))?
#18484 commented on
Jun 12, 2021 • 0 new comments -
pd.tseries.frequencies.is_subperiod(x, x) is inconsistent
#18553 commented on
Jun 12, 2021 • 0 new comments -
Unexpected plot() matplotlib time shift
#18571 commented on
Jun 12, 2021 • 0 new comments -
.loc with (scalar, slice(None)) on MultiIndex does not drop first level
#18631 commented on
Jun 12, 2021 • 0 new comments -
No SettingWithCopyWarning for chained indexing when .loc or .iloc is first indexer
#18752 commented on
Jun 12, 2021 • 0 new comments -
Weird DatetimeIndex + secondary y axis plotting issue
#18768 commented on
Jun 12, 2021 • 0 new comments -
Merge with how='inner' does not always preserve the order of the left keys
#18776 commented on
Jun 12, 2021 • 0 new comments -
Timedelta parse AM/PM
#18793 commented on
Jun 12, 2021 • 0 new comments -
Overzealous ParserWarning when using dialect param on read_csv
#18845 commented on
Jun 12, 2021 • 0 new comments -
Offsets Roundup
#18854 commented on
Jun 12, 2021 • 0 new comments -
plt.xticks after plotting with DateTimeIndex results in strange labels
#18881 commented on
Jun 12, 2021 • 0 new comments -
Some interesting behavior from .groupby().apply( .to_records() )
#18930 commented on
Jun 12, 2021 • 0 new comments -
API: can not use array as table item
#18955 commented on
Jun 12, 2021 • 0 new comments -
Asymmetry between groupby([groupers]) and groupby(grouper).resample
#18971 commented on
Jun 12, 2021 • 0 new comments -
CLN: Refactor nanops' empty array handling
#18976 commented on
Jun 12, 2021 • 0 new comments -
Management of null values as index names
#18988 commented on
Jun 12, 2021 • 0 new comments -
PERF/BENCHMARK: comprehensive cat-groupby benchmarks
#19026 commented on
Jun 12, 2021 • 0 new comments -
DataFrame doesn't define density
#19028 commented on
Jun 12, 2021 • 0 new comments -
ENH: A cheap copy on a dataframe
#19102 commented on
Jun 12, 2021 • 0 new comments -
CLN: remove need for assert_matching in pandas/tests/indexes/test_multi.py
#19105 commented on
Jun 12, 2021 • 0 new comments -
DataFrame.loc[] prioritizes columns when setting with missing label
#19110 commented on
Jun 12, 2021 • 0 new comments -
API/ENH: easier configurable NA values for parsing
#19156 commented on
Jun 12, 2021 • 0 new comments -
Nusicance Columns in cumulative aggregations
#19285 commented on
Jun 12, 2021 • 0 new comments -
.apply() for core.window.Window (feature request)
#19286 commented on
Jun 12, 2021 • 0 new comments -
Deprecate pd.*Index*(names='')
#19295 commented on
Jun 12, 2021 • 0 new comments -
Allow diff & shift to take lists of periods?
#19298 commented on
Jun 12, 2021 • 0 new comments -
Sql upsert
#29636 commented on
Jun 6, 2021 • 0 new comments -
DOC: move info docs to DataFrameInfo
#38062 commented on
Jun 8, 2021 • 0 new comments -
CI: clean azure pipeline
#38636 commented on
Jun 12, 2021 • 0 new comments -
BUG: 2D ndarray of dtype 'object' is always copied upon construction
#39272 commented on
Jun 8, 2021 • 0 new comments -
BUG: Breaking change to offsets.pyx - MonthOffset
#39887 commented on
Jun 10, 2021 • 0 new comments -
ENH: `Styler.to_latex` conversion from CSS
#40731 commented on
Jun 12, 2021 • 0 new comments -
[ArrowStringArray] API: StringArray -> ObjectStringArray
#40962 commented on
Jun 6, 2021 • 0 new comments -
TYP: Signature of "rename" incompatible with supertype "NDFrame"
#40979 commented on
Jun 8, 2021 • 0 new comments -
TYP: Signature of "reindex" incompatible with supertype "NDFrame"
#40984 commented on
Jun 8, 2021 • 0 new comments -
API: make `hide_columns` and `hide_index` have a consistent signature and function in `Styler`
#41266 commented on
Jun 11, 2021 • 0 new comments -
ENH: retain masked EA dtypes in groupby with as_index=False
#41373 commented on
Jun 9, 2021 • 0 new comments -
DOC: unpin numpydoc, fix validation script #39688
#41456 commented on
Jun 10, 2021 • 0 new comments -
BUG: columns name retention in groupby methods
#41497 commented on
Jun 9, 2021 • 0 new comments -
CI: Fail on Python 3.10 Pytest Failure
#41595 commented on
Jun 11, 2021 • 0 new comments -
REF: standardize astype in EA subclasses
#41652 commented on
Jun 11, 2021 • 0 new comments -
Fix inconsistent results for empty datasets describe
#41716 commented on
Jun 8, 2021 • 0 new comments -
DOC: 1.2.5 release date
#41780 commented on
Jun 7, 2021 • 0 new comments