tldextract accurately separates the gTLD or ccTLD (generic or country code top-level domain) from the registered domain and subdomains of a URL. For example, say you want just the 'google' part of 'http://www.google.com'.
This is a companion discussion topic for the original entry at https://copr-fe-dev.cloud.fedoraproject.org/coprs/ankursinha/python-tldextract/