[Python-Dev] test___all__ polluting sys.modules?

Andrew Svetlov andrew.svetlov at gmail.com
Sun Dec 30 01:48:13 CET 2012

See (unfinished but trivial enough) http://bugs.python.org/issue14715
for proposed way to modules/importsystem cleanup

On Sun, Dec 30, 2012 at 2:31 AM, Eli Bendersky <eliben at gmail.com> wrote:
> Hi,
> This came up while investigating some test-order-dependency failures in
> issue 16076.
> test___all__ goes over modules that have `__all__` in them and does 'from
> <module> import *' on them. This leaves a lot of modules in sys.modules,
> which may interfere with some tests that do fancy things with sys,modules.
> In particular, the ElementTree tests have trouble with it because they
> carefully set up the imports to get the C or the Python version of etree
> (see issues 15083 and 15075).
> Would it make sense to save the sys.modules state and restore it in
> test___all__ so that sys.modules isn't affected by this test?
> Eli
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Andrew Svetlov

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