Simple Python module to generate PKCE code verifier and code challenge.
pip install pkce>>> import pkce
>>> code_verifier, code_challenge = pkce.generate_pkce_pair()>>> import pkce
>>> code_verifier = pkce.generate_code_verifier(length=128)
>>> code_challenge = pkce.get_code_challenge(code_verifier)Spec for the PKCE protocol can be found here.