self-contained, this change facilitates maintenance and the Python version
can be easily imported for experimentation.

Original patch by Tarek Ziadé.

  a package's __init__.py.  TestLoader.loadTestsFromModule() still accepts
  use_load_tests, but it is deprecated and ignored.  A new keyword-only
  attribute `pattern` is added and documented.  Patch given by Robert Collins,
  tweaked by Barry Warsaw.

Patch from Thomas Kluyver.

First letter no longer is stripped from the "status" key in
the result of Treeview.heading().

First letter no longer is stripped from the "status" key in
the result of Treeview.heading().

a pipe in _ipconfig_getnode().

Optimized bytes and bytes_le properties of UUID and UUID constructor with
bytes_le argument.

Fixed a bug in handling an error occured during reading from a pipe in
_ipconfig_getnode().

response is received.  Patch by Martin Panter.

response is received.  Patch by Martin Panter.

argument contains not permitted null character or byte.

expressions.

Original patch by Serhiy Storchaka.

with an exception set. This new assertion helps to understand if the exception
was already set before calling the function or raised by the function.

allocation failure