Issue #3781: Final cleanup of warnings.catch_warnings and its usage in the test suite. Closes issue w.r.t. 2.6 (R: Brett Cannon)

larger than uint. Reverts r65975. Reviewed by Brett Cannon.

PyString_FromFormat which has an independent implementation, and uses "%zd".

This makes a difference on win64, where printf needs "%Id" to display
64bit values. For example, queue.__repr__ was incorrect.

Reviewed by Martin von Loewis.

Delete old NormalizationTest.txt if it doesn't match
unidata_version.

  Reviewed by Amaury.

Reviewed by Fredrik Lundh and Marc-Andre Lemburg.

Reviewers: Amaury, Antoine, Benjamin

the __long__ slot is allowed to return either int or long, but the behaviour of
float objects should not change between 2.5 and 2.6.

Reviewed by Benjamin Peterson

WarningsRecorder object. This makes the API simpler to use as no special object
must be learned.

Closes issue 3781.
Review by Benjamin Peterson.

Reviewed by Benjamin Peterson.

Reviewed by Benjamin Peterson.

use the TARGETDIR even for unprivileged users.

function.  Tests added.

  that may be required when linking against readline.  This fixes issues
  with x86_64 builds on some platforms (at least a few Linux flavors as
  well as OpenBSD/amd64).

Reviewed by Benjamin.

Reviewer: Benjamin