to prevent constant regeneration of importlib.h.

Patch by Amaury Forgeot d'Arc.

Patch by Kristján Valur Jónsson.

to make importlib.h (and other byte code files) equal between 32-bit
and 64-bit systems.

to help pickling of naive subclasses.

form is used in many places in the source tree, but was found to be incorrect
in a recent tracker discussion.

Original patch by J Derek Wilson.

Original patch by J Derek Wilson.

  $LIBPL value.

Patch by Serhiy Storchaka.

Restored test by specifying that the symlink links to a target (currently required for Windows symlinks). See issue15093 for details.

Patch by Chris Jerdonek.

Patch by Chris Jerdonek.

Issue #15445: Updated logging configuration documentation to highlight potential security risk posed by listen() in certain scenarios.

Patch by Roger Serwy.

Patch by Roger Serwy and myself.

Clarify what happens if shallow is false. Also, the caching note is not really correct since the cache gets occasionally cleared; therefore I removed it.

library are created with the proper ABI suffix.