What steps will reproduce the problem? 1. Just connect to an HTTPS server using MD5-sess

What is the expected output? What do you see instead?

It should fail because md5-sess is not supported by httplib2 but it fails because UnimplementedDigestAuthOptionError and UnimplementedHmacDigestAuthOptionError are subclasses of HttpLib2ErrorWithResponse which has 3 required arguments. The exceptions are instantiated with only one.

What version of the product are you using? On what operating system?

Ubuntu Linux 8.04 with Python 2.5, httplib2 0.4.0