`MethodType` has the exact semantics that `ExitStack` needs,
so we can avoid creating a Python level closure.

The examples in argparse documentation use `error: too few arguments`
error message which was removed in this commit f97c59aa in 2011.

Executors in concurrent.futures accepted tasks after executor was shutdown by interpreter exit. Tasks were left in PENDING state forever. This fix changes submit to instead raise a RuntimeError.

Based on patch by Oleg Krasnikov.

This code doesn't have effect on the final result, but causes
GCC 8 warnings and can have an undefined behavior.

Large shared arrays allocated using multiprocessing would remain allocated
until the process ends.

The protocol parameter can be any protocol supported by the
pickle module.

When bpo-12015 got resolved by increasing the length of the
random string generated by _RandomNameSequence from six to eight
characters, the docstring of the class was not adjusted accordingly.

* bpo-29613: Added support for SameSite cookies

Implemented as per draft
https://tools.ietf.org/html/draft-west-first-party-cookies-07

* Documented SameSite

And suggestions by members.

* Missing space :(

* Updated News and contributors

* Added version changed details.

* Fix in documentation

* fix in documentation

* Clubbed test cases for same attribute into single.

* Updates

* Style nits + expand tests

* review feedback

* bpo-33201: Modernize "Extension types" doc
* Split tutorial and other topics
* Some small fixes
* Address some review comments
* Rename noddy* to custom* and shoddy to sublist
* Fix markup

An entry of None in sys.path_importer_cache represents a negative/missing finder for a path, so clearing it out makes sense.

Original patch by Alexander Belopolsky.  Patch by Skip Montanaro.

* Add a test for frozen with unhashable field value.
* Improve a comment.

This removes a hack and replaces it with a proper
mapping {'list': 'List', 'dict': 'Dict', ...}.

Different paths are executed for normal exit and for leaving
the 'async with' block with 'break', 'continue' or 'return'.

This makes performance better and produces shorter pickles. This change is backwards compatible up to the oldest currently supported version of Python (3.4).

Py_UNICODE is deprecated since Python 3.3.
But the deprecation is missed in the c-api/arg document.

when __aenter__() or __aexit__() return non-awaitable object.

Followup to primary PR for the issue, GH-6344.