[issue21941] Clean up turtle TPen class

[Ezio Melotti]

Ezio Melotti added the comment:

While TPen doesn't seem to be documented, it's not prefixed by a '_', so there might people using it and relying on these methods.

----------
nosy: +ezio.melotti

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21941>
_______________________________________