通过 python3 requests.exceptions.SSLError 访问 phabricator 的问题

如何解决通过 python3 requests.exceptions.SSLError 访问 phabricator 的问题

...

from phabricator import Phabricator
phab = Phabricator(host='https://<URL>:8090/',token='api-token')
phab.user.whoami()

...

我收到以下错误：

user@prompt:/var/lib/jenkins/scripts/basics$ python3 test_phabricator.py
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py",line 485,in wrap_socket
    cnx.do_handshake()
  File "/home/ggopal/.local/lib/python3.8/site-packages/OpenSSL/SSL.py",line 1828,in do_handshake
    self._raise_ssl_error(self._ssl,result)
  File "/home/ggopal/.local/lib/python3.8/site-packages/OpenSSL/SSL.py",line 1566,in _raise_ssl_error
    _raise_current_error()
  File "/home/ggopal/.local/lib/python3.8/site-packages/OpenSSL/_util.py",line 57,in exception_from_error_queue
    raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines','tls_process_server_certificate','certificate verify failed')]

During handling of the above exception,another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py",line 665,in urlopen
    httplib_response = self._make_request(
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py",line 376,in _make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py",line 996,in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py",line 366,in connect
    self.sock = ssl_wrap_socket(
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py",line 370,in ssl_wrap_socket
    return context.wrap_socket(sock,server_hostname=server_hostname)
  File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py",line 491,in wrap_socket
    raise ssl.SSLError("bad handshake: %r" % e)
ssl.SSLError: ("bad handshake: Error([('SSL routines','certificate verify failed')])",)

在处理上述异常的过程中，又发生了一个异常：

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py",line 439,in send
    resp = conn.urlopen(
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py",line 719,in urlopen
    retries = retries.increment(
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py",line 436,in increment
    raise MaxRetryError(_pool,url,error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='URL',port=8090): Max retries exceeded with url: /user.whoami (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines','certificate verify failed')])")))

在处理上述异常的过程中，又发生了一个异常：

Traceback (most recent call last):
  File "test_phabricator.py",line 4,in <module>
    phab.user.whoami()
  File "/home/ggopal/.local/lib/python3.8/site-packages/phabricator/__init__.py",line 253,in __call__
    return self._request(**kwargs)
  File "/home/ggopal/.local/lib/python3.8/site-packages/phabricator/__init__.py",line 307,in _request
    response = requests.post(path,data=body,headers=headers,timeout=self.api.timeout)
  File "/usr/lib/python3/dist-packages/requests/api.py",line 116,in post
    return request('post',data=data,json=json,**kwargs)
  File "/usr/lib/python3/dist-packages/requests/api.py",line 60,in request
    return session.request(method=method,url=url,**kwargs)
  File "/usr/lib/python3/dist-packages/requests/sessions.py",line 533,in request
    resp = self.send(prep,**send_kwargs)
  File "/usr/lib/python3/dist-packages/requests/sessions.py",line 646,in send
    r = adapter.send(request,**kwargs)
  File "/usr/lib/python3/dist-packages/requests/adapters.py",line 514,in send
    raise SSLError(e,request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='URL','certificate verify failed')])")))

有解决问题的方法吗？我似乎某些基本身份验证失败了，因为这是访问 phabricator 的基本命令。