Berker Peksag <berker.pek...@gmail.com> added the comment:

We always explicitly document what the context manager does even if it simply 
calls an object's close() method. See 
https://docs.python.org/3/library/fileinput.html#fileinput.input and 
https://docs.python.org/3/library/shelve.html#shelve.Shelf for example.

In this case, the documentation already explains what the context manager does 
after the with block finishes (it also explains the behavior on success and 
error) with a detailed example.

Would adding a "con.close()" line to the example at 
https://docs.python.org/3/library/sqlite3.html#using-the-connection-as-a-context-manager
 clarify the behavior for you?

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versions: +Python 3.6, Python 3.7

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