Message 237832 - Python tracker

I much prefer the new patch with better compatibility and flexibility :)

If you want to strengthen the tests to reflect some of the decisions made here you could add the following tests:

Positive tests:
* putheader('C1-Control', b'next\x85line')
* putheader('Embedded-Fold', 'is\r\n\tallowed')

Negative tests:
* putheader(' Leading-Space', 'value')
* putheader('Embedded: colon', 'extra value')