On 19/11/19 4:54 am, Paul Moore wrote:
"should only manage one
resource" is not actually correct - the whole *point* of something
like nested() would be to manage multiple resources

I think a better way to say it would be that the __enter__
method should be atomic -- it should either acquire all the
resources it needs or none of them. Then it's clear that the
with statement should call __exit__ if and only if __enter__
does not raise an exception.

--
Greg
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