ImportMismatchError with files under .tox #373
Comments
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this is not a tox issue, but a pytest interaction issue doctest-modules looks in the checkout thus it breaks apart, because the imported installed module is different from the doctested ones |
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So - should pytest doctest-modules honor norecursedirs? Or is there another possible workaround? |
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it honors norecursedirs the problem is - your test imports the installed module thats inside the virtualenv afterwards doctest-modules comes along and takes a look at the source modules trying to import them failing with a missmatch |
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What does tox recommend in a scenario like this? Is it possible to do what |
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RhE usedevelop flag |
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Yeah, I was afraid you were going to say that. Unfortunately the develop flag has the issue that it doesn't work with namespace packages. Fortunately, there's a pending patch to fix that. Maybe that will work. |
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hum, i wonder if there should be a way to disable the import-mismatch error. Also, what about comparing the contents of the source files and, if they are equal, allowing it, maybe with a warning? |
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from my pov its a fundamental bug casued by collection differences, tests are collected in worktree this is a py.test issue where we should consider declaring collections (so it will look for doctest tests in the installed python modules from pythonpath, not random files in the worktree i think it is permissible to just warn on import mismatch |
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i understand the intention of the warning but i wonder if it is always valid. In a typical tox invocation, an sdist gets created and installed. The test files are then typically the same in the install-tree and the source-tree. Anyway, @jaraco, can you maybe just execute |
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@hpk42 doctest-modules does doctests on non-test files |
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doctest-modules does doctests on non-test files but when we are specifying |
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I've been using the
Perhaps I could, and I did just try it to see if it would work, but specifying More importantly, this workaround won't work in general because it excludes tests that might have been discovered outside of the package (such as in So for my purposes, I think the However, since the default (and presumably recommended) behavior is to install the package and test it from the installed location, I do think it makes sense that test collection should actively ignore the source files that were installed. I'm not sure it's worth the investment and complication to make that happen. May I suggest that we close this ticket as 'wontfix' for now, and perhaps reopen it as further use-cases demand? |
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Thanks, James, that's a very thoughtful consideration and i agree. Without "usedevelop" tox should try to teach/make pytest not collect/import files from the source location. What about tellling pytest to map certain source paths to installed paths? E.g. Or maybe we could make it more automatic by going for an |
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I like the second option best - it allows for source-only tests to still be collected, but gives preference to any tests that reside in content that's been copied as part of an install operation. |
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ok, i opened an issue on pytest: pytest-dev/pytest#2042 |
(Similar issue here: tox-dev/tox#373 (comment))
…1.4.1
David Aguilar (56):
tests: add tests for pandas Series with multi indexes
pandas: improve serialization for Series objects
pandas: improve serialization for Series objects
pandas: add more tests for pandas.Series multi-indexes
tests: add enum tests demonstrating more supported use cases
jsonpickle: improve serialization for non-string keys
pickler: simplify _flatten_key_value_pair()
jsonpickle: preserve dict order on Python3
travis: disable python3.5 for now
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We're getting close, but Python 3.7 still requires a workaround
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It adds no value to add a pip requirement for the tox install
Pin to pip 19.0 for now for pypa/pip#6434.
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Python 3 only
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Test/release on Python 3.8
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Finish dropping support for Python 2 (I hope).
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Sebastian Kriems (1):
spaces, style and formatters (#4)
Sebastian Pipping (2):
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readme: Inform about security implications
Vincent Fazio (1):
setup.cfg: let python-tag mirror python_requires
johnthagen (1):
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layday (1):
Require toml extra for setuptools_scm (#12)
I'm attempting to convert my projects away from pytest-runner and instead use tox.
In jaraco.mongodb (tox), you can see the tests fail to collect due to repeated ImportMismatchErrors for every module in the package. This happens on every Python version. You can see the failed tests in the Travis Job, but I get the same errors locally when running simply
tox.As you can see in the code,
.toxis indicated in norecursedirs.What can I do next to investigate?
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