Frequently, while globbing, one needs to work with multiple extensions. I’d like to propose for fnmatch.filter to handle a tuple of patterns (while preserving the single str argument functionality, alas str.endswith), as a first step for glob.i?glob to accept multiple patterns as well.

Here is the implementation I came up with:

https://github.com/python/cpython/compare/master...andresdelfino:fnmatch-multiple-patterns?expand=1

If this is deemed reasonable, I’ll write tests and documentation updates.

Any opinion?