Removes escaped characters from any quoted string that's passed to it through the command line and prints out its different components.

urldecode.py

#!/usr/bin/env python3
import sys
from os import system
from urllib.parse import unquote


def decode(url):
    """Decodes url encoded string"""
    return unquote(url)


def break_apart(decoded):
    """Attempts to break apart the url into its different parts"""
    url_list = []
    if '?' in decoded:
        engine, parts = decoded.split('?')
        url_list.append(engine)
        if '&' in parts:
            for part in parts.split('&'):
                var_list = part.split('=')
                url_list.append(var_list)
        return url_list
    else:
        return decoded


def usage():
    """Usage statement"""
    print('usage: {} "url"'.format(__file__.split('/')[-1]))
    sys.exit(1)


def main():
    """Run this script from commandline"""
    # check and see if we have a string to decode
    if len(sys.argv) == 1:
        usage()
    else:
        url = sys.argv[1]

    # decode the url string
    decoded = decode(url)

    # break it apart if we can
    parts = break_apart(decoded)

    # clean the console
    system('cls||clear')

    # if we have broken it apart, display the parts
    if len(parts) > 1:
        print("\n{:>8}: {}".format('ENG', parts.pop(0)))
        for var in parts:
            print('{:>8}: {}'.format(var[0], var[1]))
        print("\n")
    else:
        # if no parts, just display the decoded string
        print(parts)


if __name__ == '__main__':
    main()