MyPy configuration - exclude multiple directories

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We're currently using Mypy (v 0.910) in our project with pyproject.toml for configuration.

I have the following file structure:

src
  --app
    --generated
    --service
    --data
  --ingest

pyproject.toml:

...
[tool.mypy]
python_version = 3.8
disallow_untyped_defs = true
exclude = "(src/app/generated)|(src/ingest)"
...

When running with this configuration, the src/ingest folder is ignored, but not the src/app/generated folder. To test the regex, I also tried:

...
[tool.mypy]
python_version = 3.8
disallow_untyped_defs = true
exclude = "(src/app)|(src/ingest)"
...

mypy src --config-file ./pyproject.toml 
Success: no issues found in 1 source file

which successfully ignored all files. I'm wondering why the first example is not ignoring src/app/generated folder.

pyproject.toml mypy python
2 Answers

for whoever uses setup.cfg file. The following syntax is the one that worked for me:

[mypy]
exclude = folder_1|venv|tests
user_24797860

Following should work:

[tool.mypy]
python_version = 3.8
disallow_untyped_defs = true
exclude = "src/(app|ingest)"
user_54621000
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