[issue30394] smtplib leaves open sockets around if SMTPConnectError is raised in __init__

[Joel Hillacre]

Joel Hillacre added the comment:

> Joel, our patch system has moved to GitHub. Mind to turn your patch into a PR?

I have opened a PR now.

I took a look at changing my example into a test. I am not sure how to test for a lack of warning. Closest test I found was BadHELOServerTests in test_smtplib.py, but using mock_socket would not cause the warning from socket.py.

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<http://bugs.python.org/issue30394>
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