Ignore __pypackages__ directory contents

[cachitas]

Describe the bug

When using PDM, black does not ignore __pypackages__ directory contents.

To Reproduce

Run pdm run black .

Expected behavior

black should reformat only project files.

Environment

• Black's version: 22.1.0
• PDM version: 1.12.6
• OS and Python version: Ubuntu 21.10 with Python 3.10.1

[felix-hilden]

Since we already ignore venvs and a bunch of other stuff by default, I think this is a reasonable ask.

[cachitas]

Just noticed this is partly my fault.
I had the directory in my .gitignore but was using exclude in my [tool.black] section in pyproject.toml. Using extend-exclude as documented fixed it.

[JelleZijlstra]

Then my proposed fix wouldn't have helped you either :). But it's still a reasonable idea to exclude the directory by default.