Как мне создать соединение SSL в python 3.7 на macOS без получения CERTIFICATE_VERIFY_FAILED

Question

У меня проблемы с созданием SSL-соединений в Python 3.7 (домашний помощник 0.81):

2018-11-04 17:16:05 ERROR (MainThread) [homeassistant.core] Error executing service <ServiceCall notify.pushover (c:0cce79de7d8a410fbe8163663a1b753e): message=<homeassistant.helpers.te
mplate.Template object at 0x10c096eb8>>
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 343, in _make_request
    self._validate_conn(conn)
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 839, in _validate_conn
    conn.connect()
  File "/usr/local/lib/python3.7/site-packages/urllib3/connection.py", line 344, in connect
    ssl_context=context)
  File "/usr/local/lib/python3.7/site-packages/urllib3/util/ssl_.py", line 342, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 412, in wrap_socket
    session=session
  File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 850, in _create
    self.do_handshake()
  File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ssl.py", line 1108, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get issuer certificate (_ssl.c:1045)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/requests/adapters.py", line 449, in send
    timeout=timeout
  File "/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py", line 638, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/usr/local/lib/python3.7/site-packages/urllib3/util/retry.py", line 398, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='api.pushover.net', port=443): Max retries exceeded with url: /1/messages.json?message=test&user=XXX&title=Home+Assistant&token=YYY (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get issuer certificate (_ssl.c:1045)')))

Это также происходит с другими хостами, например ::100100

requests.exceptions.SSLError: HTTPSConnectionPool(host='accounts.spotify.com', port=443): Max retries exceeded with url: /api/token (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1045)')))

Я попытался добавить сертификаты в файл bundle.pem и установить правильные переменные среды перед запуском, но это не помогает:

export REQUESTS_CA_BUNDLE=$HOME/.homeassistant/bundle.pem
export SSL_CERT_FILE=$HOME/.homeassistant/bundle.pem

Python 3.7 был установлен вместе с homebrew, а home assistant - с pip3. У меня последняя версия MacOS Mojave.

Есть идеи?