suppress exceptions when closing handlers during __del__
#912
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when `__del__` is called during process teardown, any amount of things may already be torn down and fail currently seeing this with `typing.cast` being None, preventing access of `self.log` (or any trait) from succeeding
minrk
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note that this suppresses the error that |
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when
__del__is called during process teardown, any amount of things may already be torn down and fail. Suppress those errors.currently seeing this with
typing.castbeing None, preventing access ofself.log(or any trait) from succeeding: jupyterhub/repo2docker#1379I'll work on a separate PR to remove most if not all use of
return cast(...)which doesn't do anything more thanreturn x # type:ignoreother than introduce possible errors like this and (negligible) performance cost.