Radio playlist bitrate checker

radio-bitrate-checker.py

from collections import defaultdict
import getopt
from pprint import pprint
import sys
import urllib.request
import urllib.error


def usage(filename):
    print("Usage:", filename, "<m3u playlist file> [m3u playlist files...]")
    print("\t-h, --help\tprints this help")


def main(argv=None):
    if argv is None:
        argv = sys.argv

    try:
        opts, args = getopt.getopt(argv[1:], "h", ["help"])
    except getopt.error as message:
        print(message)
        usage(argv[0])
        return 2

    for o, a in opts:
        if o in ("-h", "--help"):
            usage(argv[0])
            return 0

    if not args:
        usage(argv[0])
        return 2

    radios = defaultdict(lambda: defaultdict(list))
    for filename in args:
        try:
            for line in open(filename, 'r', encoding='iso-8859-1'):
                if not line.isspace() and not line.startswith('#'):
                    try:
                        with urllib.request.urlopen(line) as stream:
                            info = stream.info()
                            radios[info["icy-genre"]][info["icy-br"]].append(line.strip())
                    except urllib.error.HTTPError as error:
                        print("Error opening", line.strip(), ":", error.reason)
        except FileNotFoundError:
            print("File", filename, "not found")

    pprint(radios)


if __name__ == "__main__":
    sys.exit(main())