Oscar Benjamin wrote:
> A generator cannot guarantee that execution continues after a yield so
> any context manager used around a yield is dependent on __del__. I
> think a good rule of thumb is "don't yield from a with block".
Uh-oh, I am afraid I did this quite a few times. Most instances seem to be
context managers though. Is something like
@contextmanager
def my_open(filename):
if filename == "-":
yield sys.stdin
else:
with open(filename) as f:
yield f
OK?
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