stdout are lost in buildbots

So it's also enabled when using "./python -m test".

Issue #12079: Decimal(0).fma(Decimal('inf'), 'not a number') should give a TypeError, not a Decimal.InvalidOperation

merge 3.2 -> default

merge 3.1 -> 3.2

is installed into the lib directory: prevents startup exception in site.py.

fixed the move api in packaging.install, and closing the handle left by mkstemp() in its test module

struct guarantees the loop will always be run once to initialize code.

Avoid also zombi processes: Popen.communicate() calls its wait() method.