IronLanguages / IronLanguages/ironpython3

Tests which run in release mode with -E fail to load the standard library

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#1,067 2 comments 0 reactions 0 assignees View on GitHub

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testing
Dominant language
C#
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Avg merge
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Merged PRs (30d)
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Description

For example, test_calendar checks the output of:

ipy -I -m calendar
but this fails with:
Could not import runpy module

The reason for this failure is because when running tests, the standard library is added to sys.path using IRONPYTHONPATH which is ignored when using -E (or -I). This does not occur in debug mode since the path is added to sys.path in an #if DEBUG section of the code.

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Research direction

Start with the test_calendar case, especially the ipy -I -m calendar invocation, and trace how release-mode tests add the standard library to sys.path. Inspect the #if DEBUG path and the handling of IRONPYTHONPATH under -E and -I. Done means the release-mode test loads the standard library and passes without relying on the ignored environment path.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp, python
Domain
compilers, testing-qa
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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