gistfile1.txt

>>> import xmlrpclib
>>> proxy=xmlrpclib.ServerProxy("https://preview-pypi.python.org/pypi")
>>> d=proxy.list_packages_with_serial()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/xmlrpclib.py", line 1224, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib/python2.7/xmlrpclib.py", line 1578, in __request
    verbose=self.__verbose
  File "/usr/lib/python2.7/xmlrpclib.py", line 1264, in request
    return self.single_request(host, handler, request_body, verbose)
  File "/usr/lib/python2.7/xmlrpclib.py", line 1312, in single_request
    response.msg,
xmlrpclib.ProtocolError: <ProtocolError for preview-pypi.python.org/pypi: 500 Internal Server Error>
>>>