我刚刚在我的计算机上安装了 Ubuntu，但我无法安装任何 ppa，命令正在运行并且永不停止，我需要使用Ctrl+取消处理器C。
ubuntovini@ubuntovini-Aspire-A515-51G:~$ sudo add-apt-repository ppa:ubuntudde-dev/stable
^CTraceback (most recent call last):
File "/usr/bin/add-apt-repository", line 136, in <module>
shortcut = shortcut_handler(line)
File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 884, in shortcut_handler
ret = factory(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 469, in shortcut_handler
return PPAShortcutHandler(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 426, in __init__
info = get_ppa_info(self.shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 380, in get_ppa_info
ret = get_ppa_info_from_lp(user, ppa)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 110, in get_ppa_info_from_lp
return get_info_from_lp(lp_url)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 104, in get_info_from_lp
return get_info_from_https(lp_url, True)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 96, in get_info_from_https
data = func(lp_url=url, accept_json=accept_json, retry_delays=retry_delays)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 138, in _get_https_content_py3
lp_page = urllib.request.urlopen(request,
File "/usr/lib/python3.8/urllib/request.py", line 222, in urlopen
return opener.open(url, data, timeout)
File "/usr/lib/python3.8/urllib/request.py", line 525, in open
response = self._open(req, data)
File "/usr/lib/python3.8/urllib/request.py", line 542, in _open
result = self._call_chain(self.handle_open, protocol, protocol +
File "/usr/lib/python3.8/urllib/request.py", line 502, in _call_chain
result = func(*args)
File "/usr/lib/python3.8/urllib/request.py", line 1369, in https_open
return self.do_open(http.client.HTTPSConnection, req,
File "/usr/lib/python3.8/urllib/request.py", line 1326, in do_open
h.request(req.get_method(), req.selector, req.data, headers,
File "/usr/lib/python3.8/http/client.py", line 1240, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.8/http/client.py", line 1286, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.8/http/client.py", line 1235, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.8/http/client.py", line 1006, in _send_output
self.send(msg)
File "/usr/lib/python3.8/http/client.py", line 946, in send
self.connect()
File "/usr/lib/python3.8/http/client.py", line 1402, in connect
super().connect()
File "/usr/lib/python3.8/http/client.py", line 917, in connect
self.sock = self._create_connection(
File "/usr/lib/python3.8/socket.py", line 796, in create_connection
sock.connect(sa)
KeyboardInterrupt