A colleage motivated me to add some example data. Attached you will find a small sample program listing the certificates and trying to connect to my machine.

Output of the program:
Text "fake" nowhere to be found :-(

Traceback (most recent call last):
  File "list_cas.py", line 88, in <module>
    sys.exit(main())
  File "list_cas.py", line 83, in main
    ssl_sock.connect((MY_SERVER, 443))
  File "C:\Program Files (x86)\Python37-32\lib\ssl.py", line 1150, in connect
    self._real_connect(addr, False)
  File "C:\Program Files (x86)\Python37-32\lib\ssl.py", line 1141, in _real_connect
    self.do_handshake()
  File "C:\Program Files (x86)\Python37-32\lib\ssl.py", line 1117, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1056)