def ls(self, path_glob):

        # clean up the  base uri to ensure we have an equal uri to boto (s3://)
        # just in case we get passed s3n://
        scheme = urlparse(path_glob).scheme

        # support globs
        glob_match = GLOB_RE.match(path_glob)

        # we're going to search for all keys starting with base_uri
        if glob_match:
            # cut it off at first wildcard
            base_uri = glob_match.group(1)
        else:
            base_uri = path_glob

        bucket_name, base_name = parse_s3_uri(base_uri)

        # allow subdirectories of the path/glob
        if path_glob and not path_glob.endswith('/'):
            dir_glob = path_glob + '/*'
        else:
            dir_glob = path_glob + '*'

        bucket = self.get_bucket(bucket_name)
        for key in bucket.list(base_name):
            uri = "%s://%s/%s" % (scheme, bucket_name, key.name)

            # enforce globbing
            if not (fnmatch.fnmatchcase(uri, path_glob) or
                    fnmatch.fnmatchcase(uri, dir_glob)):
                continue

            yield uri
Recursively list files on S3.
dataset/ETHPy150Open Yelp/mrjob/mrjob/fs/s3.py/S3Filesystem.ls