IMAPClient doesn't create a default SSL context for SSL connections

[psihonavt]

Hello,

I'm facing a weird issue trying to establish a secure IMAP connection:

In [3]: imapclient.__version__
Out[3]: '3.0.1'

In [5]: cl = imapclient.IMAPClient('mail.democrats.com', 993)
....
File /usr/lib/python3.11/ssl.py:1379, in SSLSocket.do_handshake(self, block)
   1377     if timeout == 0.0 and block:
   1378         self.settimeout(None)
-> 1379     self._sslobj.do_handshake()
   1380 finally:
   1381     self.settimeout(timeout)

SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1006)

However, if I provide some SSL context:
(that's what imaplib is doing under the hood https://github.com/python/cpython/blob/178919cf2132a67bc03ae5994769d93cfb7e2cd3/Lib/imaplib.py#L1303)

In [6]: imapclient.IMAPClient('mail.democrats.com', 993, ssl_context=ssl._create_stdlib_context())
Out[6]: <imapclient.imapclient.IMAPClient at 0x7f0831b34250>

In [8]: imaplib.IMAP4_SSL('mail.democrats.com', 993)
Out[8]: <imaplib.IMAP4_SSL at 0x7f0831ce5f10>

Is this a bug in IMAPClient, or am I doing something wrong? I'm actually surprised to see this error, for we have been using IMAPClient for years to connect to hundreds of IMAP servers over SSL.

[psihonavt]

please disregard this issue; not an issue