Filename checks?

[adamchainz]

PEP 8 states:

Modules should have short, all-lowercase names.

pycodestyle could check the passed filenames are lowercase to help enforce this.

[adamchainz]

(Apologies if this isn't new, I couldn't find any existing issue but there are quite a few terms to search/filter so might have missed one)

[sigmavirus24]

Except that sometimes things are passed on standard in and many modules use _ these days which sounds like it's against the PEP. So I'd say the de facto standard is quite different from the written standard.

[asottile]

this may be something better accomplished through pep8-naming?

[adamchainz]

@sigmavirus24 _ is not against the PEP, sorry the full text is:

Modules should have short, all-lowercase names. Underscores can be used in the module name if it improves readability. Python packages should also have short, all-lowercase names, although the use of underscores is discouraged.

pycodestyle could only check for uppercase characters. These cause problems porting code from a case insensitive to case sensitive filesystem, and the main reason I opened this issue.

I appreciate the name can't be checked from stdin.

@asottile Yes it could be in that project instead.

[sigmavirus24]

I transferred this over to pep8-naming since we were all in agreement about where it belonged.

[sobolevn]

JFYI: a lot of module-level checks are covered in wemake-python-styleguide that uses pep8-naming as a dependency.

[fpuga]

There are also two flake8 plugins that are related to this feature, but it will be nice to have it in pep8-naming:

• flake8-module-name. A flake8 plugin for testing PEP-8 conform package and module names.
• flake8-filename. A flake8 linter plug-in for validating that certain files comply with a user defined pattern.

[sigmavirus24]

flake8-filename says

This project is currently not actively maintained