urlparse

#!/usr/bin/env python3

import sys
from urllib.parse import urlparse, parse_qs
from collections import defaultdict

help = f'''
Usage:
    {sys.argv[0]} [URL] [PRINT_FORMAT]

Valid format:
    scheme, netloc, path, params, query, fragment, username, password, hostname, port

Example:
    $ {sys.argv[0]} "http://docs.python.org:80/3/library/urllib.parse.html?highlight=params#url-parsing" "{{query[highlight]}} (port={{port}})"
    docs.python.org:80 -> params (port=80)
'''

try:
    url, fmt = sys.argv[1:3]
except ValueError:
    print(help)
    sys.exit(1)

if '://' not in url:
    url = '//' + url

u = urlparse(url)
query = defaultdict(str, { k : v[0] for k, v in parse_qs(u.query).items() })

#print(u)
#print(query)
#print(query['ref'])

s = fmt.format(
    scheme=u.scheme or '',
    netloc=u.netloc or '',
    path=u.path or '',
    params=u.params or '',
    query=query,
    fragment=u.fragment or '',
    username=u.username or '',
    password=u.password or '',
    hostname=u.hostname or '',
    port=u.port or ''
)

print(s)