#25542: Discover runner will raise AttributeError when test modules raise
ImportError
-----------------------------------+--------------------------------------
Reporter: hirokiky | Owner: nobody
Type: Bug | Status: new
Component: Testing framework | Version: master
Severity: Normal | Resolution:
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by timgraham):
* needs_better_patch: => 0
* has_patch: 1 => 0
* needs_tests: => 0
* needs_docs: => 0
Comment:
Not sure it can be solved or that it's Django's problem. From a
[https://groups.google.com/d/msg/python-tornado/u1vD0WTugJA/gs7qw6s3QEkJ
python-tornado thread]:
It's a problem with python's unittest module (or really it's a problem
with imprecise exception behavior from `__import__` - you can't
distinguish between a module that doesn't exist and one that exists
but could not be loaded due to an internal ImportError). The unittest
loader wants to support loading individual classes and methods, so
when it sees an ImportError it just chops one level off the name and
looks it up later with getattr. I don't know of any workaround other
than just retrying the import outside the test loader context (as long
as you know it's supposed to be a module and not a class/method inside
the module). Python 2.7 made a lot of changes to the unittest module,
but this issue remains.
--
Ticket URL: <https://code.djangoproject.com/ticket/25542#comment:1>
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