Patch by Alex Gaynor.

Patch by Alex Gaynor.

TestHelpVersionOptional was redundant.

TestHelpVersionOptional was redundant.

robust at shutdown. If needs to release multiple resources, they are released
even if errors are occured.

robust at shutdown. If needs to release multiple resources, they are released
even if errors are occured.

The fix has moved in this branch.  Also, the opt-in is already available
on this branch; just set nasmDir when building.

This will prevent failures from the version of NASM installed on buildbots,
if the ability to override the version used is desired again later, we can
figure out a way to opt in.

Builds using prepared sources that had Perl available anyway were broken
by the previous fix to this script (oops).

systems, instead of just "1".

Patch by Davin Potts.

again if the first call to connect() raises an InterruptedError.

When the C function connect() fails with EINTR, the connection runs in
background. We have to wait until the socket becomes writable to be notified
when the connection succeed or fails.

Patch by Hoolean.

are down, don't use anymore in test_urllib2net

the FTP connection failed to fix a ResourceWarning.