binascii.b2a_qp is present but throws NotImplemented breaking quopri standard module.
description
<Thanks>Seo Sanghyeon</Thanks>
Either removing the functions from the module or implementing the functions would fix it.
> CPython
> >>> import quopri
> >>> quopri.encodestring('=')
> '=3D'
>
> IronPython
> >>> import quopri
> >>> quopri.encodestring('=')
> Traceback (most recent call last):
> File quopri, line unknown, in encodestring
> TypeError: b2a_qp() takes exactly 4 non-keyword arguments (1 given)