* TYP: more return annotations for io/*

* import future

The advantage is that Sequence is covariant which allows passing in
List[str], for example.

* added link to advanced indexing guide in .loc docstring

* changed refernce style for .loc d...

* Bug: GroupBy raising error with None in first level of MultiIndex

* Add test

* Change wh...

BUG: read_xml iterparse doesn't handle multiple toplevel elements with lxml parser

* TYP: Return annotations for io/{formats,json}

* flake8

* explicitly check whether width ...

* ENH: TDA.total_seconds support non-nano

* fix doctest

* mypy fixup

* Cache Conda env

* python-version -> extra-specs

* python-version -> extra-specs

* Rem...

* TYP: Missing return annotations in util/tseries/plotting

* the more tricky parts

* typ: _item_cache and _ixs

* fixup docstring

* linting

Fix typo

datavlaues => datavalues

* Fix vertical align failure on xlsxwriter

* CLN: linter

* Add what's new entry

* Add t...

* update readme, rename docs that have development instructions

* add link to dev docs

* r...

* fix stacklevel of read_csv warning

* :doc: add whatsnewnote

* move whatsnew entry to v1.4.4

* Update series.pyi

added TimestampSeries comparisons, to solve https://github.com/pandas-dev...

* update readme, rename docs that have development instructions

* add link to dev docs

* r...

* ENH: Move PyperclipException and PyperclipWindowsException to error/__init__.py per GH27656

...

* TYP: ndim is consistently a property

* unused import

* fix test

* nicer fix

* Fix reading SAS7BDAT files with zero rows (#47116)

* Fix reading SAS7BDAT files with zero r...

* DEPR: na_sentinel in factorize

* WIP

* DEPR: na_sentinel in factorize

* Fixups

* F...

* TYP: read_sas

* make __next__ compatibel with empty datafram

* df -> da

* whatsnew

* BUG: DataFrame.setitem raising when rhs is ea dtype Series

* Add gh ref

* BUG: read_csv ignoring non existing header rows for python engine

* Rename variable

* DOC: Minor fixes in whatsnew 1.5.0

* revert

* Fixed error message

* Update v1.4.3.rst

* Update v1.4.3.rst

* Added test case

* Ad...

actually this is fine

* BUG: Fix issues with numeric_only deprecation

* improve test

* Change raising to FutureW...

* BUG: assert_index_equal ignoring names when check_order is false

* Update doc/source/whatsn...

* TST: GH 27185 Adding test to check df with timedelta and int obj sums as expected

* TST: up...

* DOC: move enhancements in 1.5 release notes

* remove rogue hash

* ENH: consistent add/sub behavior for mixed resolutions

* test with td64

* Add an interactive shell powered by JupyterLite

* Update to the dedicated JupyterLite deplo...

* Deprecate non-keyword arguments for rsplit

* linter fix

* Deprecate non-keyword argument...

* should fix gh 29

* fix GH 31, 32, 30

* forgot to save test for .loc

Revert "ENH/TST: Add BaseInterfaceTests tests for ArrowExtensionArray (#47377)"

This reverts ...

* BUG: iterparse of read_xml not parsing duplicate element and attribute names

* Refactor dup...

* DOC: clarify to_csv float format docstring

* Clarify doc

* Clarify doc

* BUG: read_excel raising uncontrolled IndexError when header references non-existing rows

* ...

* multiindex lexsort depth test

* add periodindex loc test

* import

* pep

* Fixes fr...

* REF: do masking in checked_add_with_arr

* mypy fixup

* Consistent handling of 0-dim in Timedelta arithmetic methods

* update test

* BUG: read_csv may interpret second row as index names even if header is integer

* BUG: read...

remove comment-bot

* TST: GH26650, added new test to validate numpy matmul function with dataframes as inputs

* ...

* CI/DEBUG: Windows 3.9 memory error

* Try skipping some suspicious tests

* Try skipping t...

This reverts commit bb9a9852265915a4688f772dd062d3fcf4159a32.

Copy & update markdown files from pandas-dev/pandas

* ENH: DTA/DTI __repr__ support non-nano

* mypy fixup

* ENH: Timedelta/Timestamp round support non-nano

* parametrize test_floor

* un-xfail

* ENH: Timestamp +- timedeltalike scalar support non-nano

* ENH: Timestamp.__sub__(datetime) ...

* CI: Temporary build pandas with N_JOBS=1 to avoid flakiness

* Check again

* adding a test for bar plot with intervalrange xaxis

* fixed assert in test

* moved impor...

* BUG Avoid IndexError on writing empty (row) MI df to excel (GH19543)

* BUG Avoid IndexError...

* Allow reading SAS files from archives

* Add missing file

* Review feedback

* Fix

C...

* improve period docs

* Update pandas/_libs/tslibs/period.pyx

Co-authored-by: Matthew Roes...

* ENH: Timestamp +- timedeltalike scalar support non-nano

* ENH: Timestamp.__sub__(datetime) ...

* Add poetry, all configs and dependences now are in pyproject.toml, pckg structure now follows ...

* ENH: Timestamp +- timedeltalike scalar support non-nano

* ENH: Timestamp.__sub__(datetime) ...

* ENH: preserve non-nano DTA/TDA in Index/Series/DataFrame

* tighten xfail

* _prep_ndarray...

* Add run-tests action

* Fix

* Fix

* Fix

* Update macos-windows.yml

* Update posi...

* REGR: concat not sorting columns for mixed column names

* Fix none in columns

* BUG: con...

* TYP: plotting._matplotlib

* somehow super causes issues

* fix pickle issue: was accessin...

* [ENH] to_orc

pandas.io.orc.to_orc method definition

* pandas.DataFrame.to_orc

set to_...

* TYP: Series.quantile

* common.py