PEP 489: Multi-phase extension module initialization

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Known limitations of the current implementation:

- documentation changes are incomplete
- there's a reference leak I haven't tracked down yet

The leak is most visible by running:

  ./python -m test -R3:3 test_importlib

However, you can also see it by running:

  ./python -X showrefcount

Importing the array or _testmultiphase modules, and
then deleting them from both sys.modules and the local
namespace shows significant increases in the total
number of active references each cycle. By contrast,
with _testcapi (which continues to use single-phase
initialisation) the global refcounts stabilise after
a couple of cycles.

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This commit is contained in:

Nick Coghlan 2015-05-23 22:24:10 +10:00

parent ec219ba1c0

commit d5cacbb1d9

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Python/importlib_external.h

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