Log Message:
py-hyperlink: updated to 18.0.0

18.0.0:
When passed to str() URLs now stringify to usable URL strings.
Switched off of Python's built-in IDNA facilities to using the idna package. Not \ 
only is it much more modern, it's also much more strict and correct in its \ 
output.
Added new DecodedURL type with almost-identical API to the normal URL, except \ 
that it automatically handles reserved characters in argument values passed to \ 
its methods.
Added top-level parse() convenience function that now represents the main \ 
entrypoint to hyperlink.
Accept dictionaries as ‘query=’ arguments, in addition to sequences of tuples
URL.child() will no longer fail when child gets no segments
URL.normalize() now supports encoding stray/unmatched % characters in \ 
character-encoded fields (userinfo, path, query string, fragment)