Closing Connection Session

[BEAdi]

_TAXIIEndpoint instances, and the ones that inherit from it, have context managers that do not implement the __del__ method.
This causes sessions in_HTTPConnection not to be closed by default when not using with, because the __exit__ method is not called.

Proposed solution: Add a __del__ method to _TAXIIEndpoint class, or implement a similar context manager (with a __del__ method) in _HTTPConnection class.

Related to #37.

[chisholm]

... context managers that do not implement the __del__ method. ...

... implement a similar context manager (with a __del__ method) ...

As far as I know, context managers don't have a __del__ method. See: Context Manager Types, With Statement Context Managers. They only have __enter__ and __exit__.

This issue seems like saying it's a problem that connections aren't closed if you don't call close(). I think programmers should just remember to call close(), or use a with statement to ensure it gets called. I am skeptical that it should be linked to a finalizer.