Patch by Mark Levitt

implementing in code) the deprecation of imp.reload().

Thanks to Berker Peksag for the patch.

Noticed by Serhly Storchaka.

prefix function with PySSL_, too. Other module level functions have a prefix, too.

searching for changes
changeset:   84118:98343392fd81
tag:         tip
user:        Christian Heimes <christian@cheimes.de>
date:        Fri Jun 14 14:54:48 2013 +0200
files:       PC/VS9.0/_socket.vcproj PC/VS9.0/_ssl.vcproj
description:
Fix compilation of Python with VS 2008
Contrary to VS 2010 the compiler doesn't like semicolon seperated
dependency names

ModuleNotFoundError.

when None in sys.modules.

Forgot to raise ModuleNotFoundError when None is found in sys.modules.
This led to introducing the C function PyErr_SetImportErrorSubclass()
to make setting ModuleNotFoundError easier.

Also updated the reference docs to mention ModuleNotFoundError
appropriately. Updated the docs for ModuleNotFoundError to mention the
None in sys.modules case.

Lastly, it was noticed that PyErr_SetImportError() was not setting an
exception when returning None in one case. That issue is now fixed.

instead of manually listing tests for test.support.run_unittest().

reaped in all situations.

unittest.main().

ImportError.

The exception is raised by import when a module could not be found.
Technically this is defined as no viable loader could be found for the
specified module. This includes ``from ... import`` statements so that
the module usage is consistent for all situations where import
couldn't find what was requested.

This should allow for the common idiom of::

  try:
    import something
  except ImportError:
    pass

to be updated to using ModuleNotFoundError and not accidentally mask
ImportError messages that should propagate (e.g. issues with a
loader).

This work was driven by the fact that the ``from ... import``
statement needed to be able to tell the difference between an
ImportError that simply couldn't find a module (and thus silence the
exception so that ceval can raise it) and an ImportError that
represented an actual problem.

test_importlib.

Original patch by Sarah K.