How to use glob() to find files recursively?

Question

This is what I have:

glob(os.path.join(\'src\',\'*.c\'))

but I want to search the subfolders of src. Something like this would work:

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Answer 1

Here is a solution that will match the pattern against the full path and not just the base filename.

It uses fnmatch.translate to convert a glob-style pattern into a regular expression, which is then matched against the full path of each file found while walking the directory.

re.IGNORECASE is optional, but desirable on Windows since the file system itself is not case-sensitive. (I didn't bother compiling the regex because docs indicate it should be cached internally.)

import fnmatch
import os
import re

def findfiles(dir, pattern):
    patternregex = fnmatch.translate(pattern)
    for root, dirs, files in os.walk(dir):
        for basename in files:
            filename = os.path.join(root, basename)
            if re.search(patternregex, filename, re.IGNORECASE):
                yield filename