Function _get_digest_constructor

Lib/hmac.py:29–39

(digest_like)

def _get_digest_constructor(digest_like):
    if callable(digest_like):
        return digest_like
    if isinstance(digest_like, str):
        def digest_wrapper(d=b''):
            import hashlib
            return hashlib.new(digest_like, d)
    else:
        def digest_wrapper(d=b''):
            return digest_like.new(d)
    return digest_wrapper


class HMAC: