Dong-hee Na <donghee.n...@gmail.com> added the comment:
> Do you have any realistic example which would benefit from speeding up the
> creation of GenericAlias instances?
Hmm I did not find loop tightly calling case, but
for example, this kinds of usage are very often.
def create_q(l: list[int]) -> Queue[int]:
q = Queue[int]()
for e in l:
q.put(e)
return q
a = create_q([1,2,3,4,5])
In this code, GenericAlias is called 2 times for function declare and function
call.
It's true that GenericAlias has a small portion in this scenario,
but wouldn't it be worth it if we could optimize itself to a few lines of code?
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<https://bugs.python.org/issue40369>
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