Function validate_header_name

Lib/email/_policybase.py:21–25

(name)

valid_header_name_re = re.compile("[\041-\071\073-\176]+$")

def validate_header_name(name):
    # Validate header name according to RFC 5322
    if not valid_header_name_re.match(name):
        raise ValueError(
            f"Header field name contains invalid characters: {name!r}")

class _PolicyBase: