Unhandled errors in urllib2/stackpy

[marcoceppi]

This might be stackpy related, not sure, but receiving these errors when stackexchange isn't reachable.

Unhandled error in Deferred:
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/base.py", line 1162, in run
    self.mainLoop()
  File "/usr/lib/python2.7/dist-packages/twisted/internet/base.py", line 1171, in mainLoop
    self.runUntilCurrent()
  File "/usr/lib/python2.7/dist-packages/twisted/internet/base.py", line 793, in runUntilCurrent
    call.func(*call.args, **call.kw)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/task.py", line 194, in __call__
    d = defer.maybeDeferred(self.f, *self.a, **self.kw)
--- <exception caught here> ---
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 133, in maybeDeferred
    result = f(*args, **kw)
  File "/usr/local/lib/python2.7/dist-packages/stackirc/client.py", line 53, in refresh
    for q in questions:
  File "/usr/lib/python2.7/dist-packages/stackpy/request.py", line 126, in __iter__
    return iter(self._fetch()['items'])
  File "/usr/lib/python2.7/dist-packages/stackpy/request.py", line 143, in _fetch
    self._data = self._url.fetch()
  File "/usr/lib/python2.7/dist-packages/stackpy/url.py", line 80, in fetch
    raw_data = urlopen(url, data=post_data).read()
  File "/usr/lib/python2.7/urllib2.py", line 126, in urlopen
    return _opener.open(url, data, timeout)
  File "/usr/lib/python2.7/urllib2.py", line 394, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 412, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 372, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 1201, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.7/urllib2.py", line 1171, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error [Errno -3] Temporary failure in name resolution>