Monkey-patch email.message._formatparam under Python 3:
replace it with _formatparam from Python 2.7
to avoid re-encoding non-ascii params.
Fix: do not decode bytes to unicode under Python 2.7.
Monkey-patch email.message._formatparam under Python 3:
replace it with _formatparam from Python 2.7
to avoid re-encoding non-ascii params.
Fix: do not decode bytes to unicode under Python 2.7.