src/streamlink/utils/__init__.py
def prepend_www(url):
    """Changes google.com to www.google.com"""
    parsed = urlparse(url)
    if parsed.netloc.split(".")[0] != "www":
        return parsed.scheme + "://www." + parsed.netloc + parsed.path
    else:
        return url
def prepend_www(url):
    """Changes google.com to www.google.com"""
    parsed = urlparse(url)
    if parsed.netloc.split(".")[0] != "www":
        return parsed.scheme + "://www." + parsed.netloc + parsed.path
    else:
        return url
def prepend_www ( url ) : parsed = urlparse ( url ) if parsed . netloc . split ( "." ) [ 0 ] != "www" : return parsed . scheme + "://www." + parsed . netloc + parsed . path else : return url
Changes google.com to www.google.com
Changes google . com to www . google . com