更新后，Add-apt-repository 不再起作用。我现在看到一个 python3.8 文件夹，并且我更新了 3 个 python 模块。到目前为止，我已经花了几天时间尝试使用符号链接的各种建议修复，并重新安装了大部分 python。什么都没用。大多数建议的修复都是几年前的，与现在安装的 python 版本无关。
更新的模块以及可能的根本原因是：
python3-distutils：amd64（3.6.8-1~18.04、3.6.9-1~18.04）python3-lib2to3：amd64（3.6.8-1~18.04、3.6.9-1~18.04）python3-gdbm：amd64（3.6.8-1~18.04、3.6.9-1~18.04）
我最近（几周前）使用过 add-apt-repository 添加新存储库，没有任何问题。之前也从未遇到过任何问题。
我有 python2.7、python3、python3.6、python3.7，现在还有 python3.8，没有一个是手动安装的。全部来自自动更新。
python3 -V产生 Python 3.6.8
这是我使用 add-apt-repository 命令时遇到的错误：
keith@Serenity:/usr/lib/python3/dist-packages$ sudo add-apt-repository ppa:sicklylife/gnucash
^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 868, in shortcut_handler
ret = factory(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 398, in shortcut_handler
return PPAShortcutHandler(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 355, in __init__
info = get_ppa_info(self.shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 326, in get_ppa_info
ret = get_ppa_info_from_lp(user, ppa)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 101, in get_ppa_info_from_lp
return get_info_from_lp(lp_url)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 95, in get_info_from_lp
return get_info_from_https(lp_url, True)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 88, in get_info_from_https
data = _get_https_content_py3(url, accept_json)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 120, in _get_https_content_py3
lp_page = urllib.request.urlopen(request, cafile=LAUNCHPAD_PPA_CERT)
File "/usr/lib/python3.6/urllib/request.py", line 223, in urlopen
return opener.open(url, data, timeout)
File "/usr/lib/python3.6/urllib/request.py", line 526, in open
response = self._open(req, data)
File "/usr/lib/python3.6/urllib/request.py", line 544, in _open
'_open', req)
File "/usr/lib/python3.6/urllib/request.py", line 504, in _call_chain
result = func(*args)
File "/usr/lib/python3.6/urllib/request.py", line 1361, in https_open
context=self._context, check_hostname=self._check_hostname)
File "/usr/lib/python3.6/urllib/request.py", line 1318, in do_open
encode_chunked=req.has_header('Transfer-encoding'))
File "/usr/lib/python3.6/http/client.py", line 1254, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1300, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1249, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.6/http/client.py", line 1036, in _send_output
self.send(msg)
File "/usr/lib/python3.6/http/client.py", line 974, in send
self.connect()
File "/usr/lib/python3.6/http/client.py", line 1407, in connect
super().connect()
File "/usr/lib/python3.6/http/client.py", line 946, in connect
(self.host,self.port), self.timeout, self.source_address)
File "/usr/lib/python3.6/socket.py", line 713, in create_connection
sock.connect(sa)
KeyboardInterrupt
keith@Serenity:/usr/lib/python3/dist-packages$