Adding a non regression test for #9765 #11725
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Non regression test for #9765
The test is expected to fail here, and to be fixed in #11708 .
Note that the test does not reproduce directly the cause of #9765 but is a best effort at reproducing the mechanism. In #9765 we were surprised of the formatting of
mod.__file__because it differs fromstr(conftestpath)althoughstr(conftestpath)has not been altered.Here we trigger an issue by submitting an altered
conftestpathalthoughmod.__file__most likely would have the expected value. It does not reproduce the crash linked to double loading, but instead highlights that modules that should have been the same are in fact different.I haven't found any documentation or PEP that says how
mod.__file__can be expected to be formatted, so in fact we could expect it to have any weird formatting as long as it resolves tostr(conftestpath)so I think it is correct to run_importconftestonce more with the original input like proposed in this PR.