Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 98, in get_ppa_info_from_lp
    lp_page = urllib.request.urlopen(request, cafile=LAUNCHPAD_PPA_CERT)
  File "/usr/lib/python3.3/urllib/request.py", line 160, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python3.3/urllib/request.py", line 473, in open
    response = self._open(req, data)
  File "/usr/lib/python3.3/urllib/request.py", line 491, in _open
    '_open', req)
  File "/usr/lib/python3.3/urllib/request.py", line 451, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.3/urllib/request.py", line 1287, in https_open
    context=self._context, check_hostname=self._check_hostname)
  File "/usr/lib/python3.3/urllib/request.py", line 1257, in do_open
    r = h.getresponse()
  File "/usr/lib/python3.3/http/client.py", line 1143, in getresponse
    response.begin()
  File "/usr/lib/python3.3/http/client.py", line 354, in begin
    version, status, reason = self._read_status()
  File "/usr/lib/python3.3/http/client.py", line 316, in _read_status
    line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
  File "/usr/lib/python3.3/socket.py", line 297, in readinto
    return self._sock.recv_into(b)
  File "/usr/lib/python3.3/ssl.py", line 453, in recv_into
    return self.read(nbytes, buffer)
  File "/usr/lib/python3.3/ssl.py", line 327, in read
    v = self._sslobj.read(len, buffer)
KeyboardInterrupt

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/add-apt-repository", line 129, in <module>
    ppa_info = get_ppa_info_from_lp(user, ppa_name)
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 105, in get_ppa_info_from_lp
    import pycurl
ImportError: No module named 'pycurl'