Thanks to Jon Poler for pointing this out.

Based on patch by Martin Panter.

Based on patch by Martin Panter.

Based on patch by Aivars Kalvāns.

Based on patch by Aivars Kalvāns.

Issue #20160: broken ctypes calling convention on MSVC / 64-bit Windows (large structs) Patch by mattip

Move the _loop attribute from the constructor of _SelectorTransport,
_ProactorBasePipeTransport and _UnixWritePipeTransport classes to the
constructor of the _FlowControlMixin class.

Add also an assertion to explicit that the parent class must ensure that the
loop is defined (not None)

Move the _loop attribute from the constructor of _SelectorTransport,
_ProactorBasePipeTransport and _UnixWritePipeTransport classes to the
constructor of the _FlowControlMixin class.

Add also an assertion to explicit that the parent class must ensure that the
loop is defined (not None)

MAXPATHLEN is now preferred.

now preferred. Patch written by Jeffrey Armstrong.

Issue #20160: broken ctypes calling convention on MSVC / 64-bit Windows (large structs) Patch by mattip

When used in the real world it can under some situations trigger
"    assert not _relpath.startswith('..'), "Path must be within the project"
     AssertionError: Path must be within the project
"

Because _get_name_from_path was not expecting to be called with the top level
directory.

We were not honouring load_tests in a package/__init__.py when that was the
start_dir parameter, though we do when it is a child package. The fix required
a little care since it introduces the possibility of infinite recursion.