[issue5800] make wsgiref.headers.Headers accept empty constructor

[Ramiro Batista da Luz]

Ramiro Batista da Luz <ramiroluz at gmail.com> added the comment:

I applied the patches for wsgiref.headers and test_headers.py, ran the test with runtests.sh test_headers.py and it passed.

I also tried the code in the description: 

>>> from wsgiref.headers import Headers
>>> headers = Headers()
>>> headers.add_header('Content-Type', 'text/plain')
>>>

----------
nosy: +ramiroluz

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5800>
_______________________________________