The datastruct module is accessible via the webob module.
An object that represents the headers as present in a WSGI environment.
This object is a wrapper (with no internal state) for a WSGI request object, representing the CGI-style HTTP_* keys as a dictionary. Because a CGI environment can only hold one value for each key, this dictionary is single-valued (unlike outgoing headers).
This class contains 9 members.
See the source for more information.