Functions message_from_string and message_from_file are documented as 
belonging to the email.parser module, but in fact they live at the top 
of the email package.

The .rst source looks fine, but the rendered html says  
`email.parser.message_from_string`. 
http://docs.python.org/library/email.parser.html#parser-class-api

Perhaps it's the `module:: email.parser` directive at the top?

A similar problem is in email.mime.rst; all the documented classes are 
exposed at the top of the email package (i.e. should be email.MIMEBase, 
not email.mime.MIMEBase)