nikolai@newkrypton:~$ sudo add-apt-repository --remove ppa:team-xmbc/ppa
    [sudo] password for nikolai:
    Traceback (most recent call last):
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 101, in _get_https_content_py3
        lp_page = urllib.request.urlopen(request, cafile=LAUNCHPAD_PPA_CERT)
      File "/usr/lib/python3.4/urllib/request.py", line 161, in urlopen
        return opener.open(url, data, timeout)
      File "/usr/lib/python3.4/urllib/request.py", line 469, in open
        response = meth(req, response)
      File "/usr/lib/python3.4/urllib/request.py", line 579, in http_response
        'http', request, response, code, msg, hdrs)
      File "/usr/lib/python3.4/urllib/request.py", line 507, in error
        return self._call_chain(*args)
      File "/usr/lib/python3.4/urllib/request.py", line 441, in _call_chain
        result = func(*args)
      File "/usr/lib/python3.4/urllib/request.py", line 587, in http_error_default
        raise HTTPError(req.full_url, code, msg, hdrs, fp)
    urllib.error.HTTPError: HTTP Error 404: Not Found

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 321, in get_ppa_info
        ret = get_ppa_info_from_lp(user, ppa)
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 91, in get_ppa_info_from_lp
        return get_info_from_lp(lp_url)
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 87, in get_info_from_lp
        return _get_https_content_py3(lp_url)
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 107, in _get_https_content_py3
        raise PPAException("Error reading %s: %s" % (lp_url, reason), e)
    softwareproperties.ppa.PPAException: 'Error reading https://launchpad.net/api/1.0/~team-xmbc/+archive/ubuntu/ppa: Not Found'

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 101, in _get_https_content_py3
        lp_page = urllib.request.urlopen(request, cafile=LAUNCHPAD_PPA_CERT)
      File "/usr/lib/python3.4/urllib/request.py", line 161, in urlopen
        return opener.open(url, data, timeout)
      File "/usr/lib/python3.4/urllib/request.py", line 469, in open
        response = meth(req, response)
      File "/usr/lib/python3.4/urllib/request.py", line 579, in http_response
        'http', request, response, code, msg, hdrs)
      File "/usr/lib/python3.4/urllib/request.py", line 507, in error
        return self._call_chain(*args)
      File "/usr/lib/python3.4/urllib/request.py", line 441, in _call_chain
        result = func(*args)
      File "/usr/lib/python3.4/urllib/request.py", line 587, in http_error_default
        raise HTTPError(req.full_url, code, msg, hdrs, fp)
    urllib.error.HTTPError: HTTP Error 404: Not Found

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/usr/bin/add-apt-repository", line 119, in <module>
        shortcut = shortcut_handler(line)
      File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 837, in shortcut_handler
        ret = factory(shortcut)
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 382, in shortcut_handler
        return PPAShortcutHandler(shortcut)
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 346, in __init__
        info = get_ppa_info(self.shortcut)
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 333, in get_ppa_info
        _get_suggested_ppa_message(user, ppa))
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 292, in _get_suggested_ppa_message
        lp_user = get_info_from_lp(LAUNCHPAD_USER_API % user)
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 87, in get_info_from_lp
        return _get_https_content_py3(lp_url)
      File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 107, in _get_https_content_py3
        raise PPAException("Error reading %s: %s" % (lp_url, reason), e)
    softwareproperties.ppa.PPAException: 'Error reading https://launchpad.net/api/1.0/~team-xmbc: Not Found'