Argument Clinic (see issue for details).

parsing code for functions with positional-only parameters where all arguments
are optional.

functions now conform to PEP 3333 when handle non-ASCII URLs.

functions now conform to PEP 3333 when handle non-ASCII URLs.

Issue #19092 - Raise a correct exception when cgi.FieldStorage is given an
invalid file-obj. Also use __bool__ to determine the bool of the FieldStorage
object.

invalid file-obj. Also use __bool__ to determine the bool of the FieldStorage
object.

Fixed a regression inroduced in issue #6157.

Fixed a regression inroduced in issue #6157.

The application object must return an iterable yielding bytestrings.

The application object must return an iterable yielding bytestrings.

close the write end of the socket pair

* store the "self reading" future when the "self pipe" is closed (when the
  event loop is closed)
* store "accept" futures to cancel them when we stop serving
* close the "accept socket" if the "accept future" is cancelled

Fix many warnings which can be seen when unit tests are run in verbose mode.

ifconfig executable is not available.

ifconfig executable is not available.

Incorrect requirements can cause memory swapping.

Incorrect requirements can cause memory swapping.

'python' clinic block, not a 'clinic' clinic block.  Patch written by
Ryan Smith-Roberts.

a help on environment with too small COLUMNS.  Based on patch by
Elazar Gershuni.

a help on environment with too small COLUMNS.  Based on patch by
Elazar Gershuni.