What should happen if the context manager attempts to suppress a raised
exception? In cases where you applied the context manager to an entire line,
e.g.
data = fail() with contextlib.suppress(Exception)
Then it would make sense to treat it like
with contextlib.suppress(Exception):
data = fail()
Where `data` remains unassigned after the block executes assuming `fail` raises
an exception. However, with the initial proposal you run into trouble when you
apply this to sub-expressions that are expected to themselves have a value. For
example, what should happen here?
more_work(fail() with contextlib.suppress(Exception))
We have no value to pass as an argument to `more_work` so there's no way we can
call it. Yet it would be odd to not call it if there's no exception being
raised since it exists outside of any context manager itself.
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