How to match python paths against recursive glob patterns

I would like to filter a list of linux-style relative paths using glob expressions which may contain **.

For example:

+-- pattern.py
+-- dir_a
|   +-- pattern.py
|   +-- dir_b
|   |   +-- pattern.py

What I'm looking for:

glob_match('*.py', 'pattern.py')                         # -> True
glob_match('*.py', 'dir_a/pattern.py')                   # -> False
glob_match('dir_a/**/*.py', 'dir_a/pattern.py')          # -> True
glob_match('dir_a/*.py', 'dir_a/dir_b/pattern.py')       # -> False
glob_match('dir_a/**/*.py', 'dir_a/dir_b/pattern.py')    # -> True

If I'm not wrong, both pathlib.Path.match and fnmatch.fnmatch do not support **, but rather interpret a single * as any character, including slash, which makes the second and fourth example above give True.

I think I can see how to implement this, but I'd be looking for an existing implementation I can rely on :)

Thanks!

Edit To clarify, the glob_match I'm looking for is the bit of glob.glob(..., recursive=True) that does the matching, without the bit that does the filesystem scanning. In other words, the result of glob_match(pattern, rel_path) should not depend on rel_path pointing to an actual file, or even having access to the filesystem.

• temporarily writing rel_path to the filesystem just to run glob_match would be a solution but I'd rather not
• I thought about diggin up the implementation in glob.glob but since it is written as an iterator that doesn't seem much easier than writing a new glob_match from scratch...