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Mypy will not automatically check files with multiple dots in their names #9833
Description
Bug Report
Files with names of the form x.y.py don't get checked by mypy.
To Reproduce
mkdir mypy-test
touch mypy-test/a.py
touch mypy-test/a.b.py
mypy mypy-test
Expected Behavior
You'd expect mypy to check two source files with the message Success: no issues found in 2 source files
Actual Behavior
Mypy only checks one source file: Success: no issues found in 1 source file
Your Environment
- Mypy version used: 0.790
- Mypy command-line flags: N/A
- Mypy configuration options from
mypy.ini(and other config files): N/A - Python version used: 3.7.4
- Operating system and version: Mac 10.15.7
Activity
gvanrossum commentedon Dec 23, 2020
Those are not legal Python file names anyway.
hauntsaninja commentedon Dec 23, 2020
As it happens, this is no longer the behaviour on master.
This is a side effect of #9742 making
mypy dir/behave more likemypy file.py. mypy already allowedmypy a.b.py, so it works with the recursive invocation now.Note that all versions associate the file with the incorrect module name "a.b". I tried to improve this, but it caused a couple issues and I backtracked to keep the PR surface smaller. See point 2 of #9742 (comment)
find_sources: deal more robustly against filenames with periods