urlopen error unknown url type: https

[techcon1@…]

After trying to log in with CAS, this error is spat out, and the TracCAS plugin is unloaded:

2007-07-18 16:15:47,574 Trac[main] ERROR: <urlopen error unknown url type: https> Traceback (most recent call last):

File "/opt/local/lib/python2.5/site-packages/trac/web/main.py", line 406, in dispatch_request

dispatcher.dispatch(req)

File "/opt/local/lib/python2.5/site-packages/trac/web/main.py", line 182, in dispatch

req.authname = self.authenticate(req)

File "/opt/local/lib/python2.5/site-packages/trac/web/main.py", line 146, in authenticate

authname = authenticator.authenticate(req)

File "build/bdist.macosx-10.3-ppc/egg/traccas/traccas.py", line 34, in authenticate

valid, user = self.cas.validate_ticket(req.abs_href.login(), ticket)

File "build/bdist.macosx-10.3-ppc/egg/traccas/pycas.py", line 41, in validate_ticket

f = urllib2.urlopen(self.validate_url(service, ticket))

File "/opt/local/lib/python2.5/urllib2.py", line 121, in urlopen

return _opener.open(url, data)

File "/opt/local/lib/python2.5/urllib2.py", line 374, in open

response = self._open(req, data)

File "/opt/local/lib/python2.5/urllib2.py", line 397, in _open

'unknown_open', req)

File "/opt/local/lib/python2.5/urllib2.py", line 353, in _call_chain

result = func(*args)

File "/opt/local/lib/python2.5/urllib2.py", line 1133, in unknown_open

raise URLError('unknown url type: %s' % type)

URLError: <urlopen error unknown url type: https>