Note: Some HTTP redirections require action from this module's client code. If this is the case, HTTPError is raised. See RFC 2616 for details of the precise meanings of the various redirection codes.
None
in response to a redirect.
This is called by the default implementations of the
http_error_30x()
methods when a redirection is received from
the server. If a redirection should take place, return a new
Request to allow http_error_30x()
to perform the
redirect. Otherwise, raise HTTPError if no other
Handler should try to handle this URL, or return None
if you can't but another Handler might.
Note: The default implementation of this method does not strictly follow RFC 2616: it allows automatic 302 redirection of POST requests, because essentially all HTTP clients do this.
Location:
URL. This method is called by
the parent OpenerDirector when getting an HTTP
`moved permanently' response.
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