Log Message:
py-markdown: updated to 3.5.2

3.5.2

Fixed

* Fix type annotations for `convertFile` - it accepts only bytes-based buffers.
 Also remove legacy checks from Python 2
* Remove legacy import needed only in Python 2
* Fix typo that left the attribute `AdmonitionProcessor.content_indent` unset

* Fix edge-case crash in `InlineProcessor` with `AtomicString`
* Fix edge-case crash in `codehilite` with an empty `code` tag
* Improve and expand type annotations in the code base
* Fix handling of bogus comments