python yolk check of pypi broken

yolk -U
Traceback (most recent call last):
  File "/sw/bin/yolk", line 9, in <module>
    load_entry_point('yolk==0.4.3', 'console_scripts', 'yolk')()
  File "/sw/lib/python2.7/site-packages/yolk/cli.py", line 1090, in main
    my_yolk.run()
  File "/sw/lib/python2.7/site-packages/yolk/cli.py", line 203, in run
    return getattr(self, action)()
  File "/sw/lib/python2.7/site-packages/yolk/cli.py", line 247, in show_updates
    self.pypi.query_versions_pypi(dist.project_name)
  File "/sw/lib/python2.7/site-packages/yolk/pypi.py", line 170, in query_versions_pypi
    versions = self.package_releases(pypi_pkg)
  File "/sw/lib/python2.7/site-packages/yolk/pypi.py", line 223, in package_releases
    return self.xmlrpc.package_releases(package_name)
  File "/sw/lib/python2.7/xmlrpclib.py", line 1224, in __call__
    return self.__send(self.__name, args)
  File "/sw/lib/python2.7/xmlrpclib.py", line 1578, in __request
    verbose=self.__verbose
  File "/sw/lib/python2.7/site-packages/yolk/pypi.py", line 64, in request
    fhandle = opener.open(request)
  File "/sw/lib/python2.7/urllib2.py", line 410, in open
    response = meth(req, response)
  File "/sw/lib/python2.7/urllib2.py", line 523, in http_response
    'http', request, response, code, msg, hdrs)
  File "/sw/lib/python2.7/urllib2.py", line 448, in error
    return self._call_chain(*args)
  File "/sw/lib/python2.7/urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "/sw/lib/python2.7/urllib2.py", line 531, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
urllib2.HTTPError: HTTP Error 502: Bad Gateway

yolk --version
yolk version 0.4.3