Description
If req.status_line is writable it allows a handler to return a custom status line description. For example:
req.status_line = "200 ALL OKAY WITH ME"
req.write('hello world!\n')
return apache.OK
The ability to change the description may be useful in testing. See thread:
http://www.modpython.org/pipermail/mod_python/2007-May/023567.html
for discussion where lack of this feature arose.