Context Managers

mediumpy_functional

Implement three context managers (with @contextlib.contextmanager):

supresser(*types_) — suppress exceptions whose type is listed (the block exits normally); other exceptions propagate.
retyper(type_from, type_to) — catch type_from and re-raise it as type_to, preserving the exception's args.
dumper(stream=None) — on any exception, write its message to stream (default sys.stderr), then re-raise.

Your solution

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Hint 1

Use @contextlib.contextmanager: put `yield` inside a try/except so the with-body runs at the yield.

Hint 2

supresser swallows listed types; retyper raises type_to(*e.args) from the caught error; dumper prints then re-raises.