get latest release unless specified

[imochoa]

import urllib.request
import urllib.parse

def get_latest_release_url(user_and_repo):

    url = f"https://github.com/{urllib.parse.quote(user_and_repo)}/releases/latest"

    with urllib.request.urlopen(url) as fp:
        # html = fp.read().decode('utf8')
        return fp.url

print(get_latest_release_url('pdfminer/pdfminer.six'))