[Email-SIG] Ensuring 7 bit encoding

[Stephen J. Turnbull]

R. David Murray writes:

 > >>> import email.message
 > >>> m = email.message.Message()
 > >>> m.set_payload("""A few lines
 > ... of 8-bit text
 > ...
 > ... One high bit character: ².
 > ... """, 'us-ascii')
 > >>> print m.as_string()
 > MIME-Version: 1.0
 > Content-Type: text/plain; charset="us-ascii"
 > Content-Transfer-Encoding: 8bit
 > 
 > A few lines
 > of 8-bit text
 > 
 > One high bit character: ².
 > 
 > >>>
 > 
 > Since 8bit isn't technically us-ascii, I wonder if this is a bug.

This is a bug.