"""Return ``True`` if *super_locale* is a superset of *sub_locale*. *super_locale* is a superset when: - Both have the same language code. - *super_locale* either has no region or its region matches ...
# Scripts that are valid but may not be recognised by all display-name APIs. """Check if *language* is in the BCP 47 private-use range (qaa-qtz). Per BCP 47, codes in this range are reserved for ...