Don't close drivers & sessions in finalizer #1183
Merged
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No longer implicitly closing drivers and sessions in
__del__()
(finalizer/destructor). Make sure to call.close()
on them explicitly or use them in awith
statement.A deprecation warning has been emitted in such cases before.
Relying on
__del__
leads to hard to follow control flow and can result in surprising behavior as there is no guarantee when that the finalizer will be called if ever. A ResourceWarning is emitted instead.See also: https://docs.python.org/3/reference/datamodel.html#object.__del__