gh-156491: Avoid KeyErrors in os._Environ.get() and __contains__() - #156492
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alexmalyshev wants to merge 2 commits into
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gh-156491: Avoid KeyErrors in os._Environ.get() and __contains__()#156492alexmalyshev wants to merge 2 commits into
alexmalyshev wants to merge 2 commits into
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Implement get() and __contains__() on os._Environ directly, which cuts out the cost of raising and catching a KeyError when the keys do not exist.
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Implement
get()and__contains__()onos._Environdirectly, which cuts out the cost of raising and catching aKeyErrorwhen the keys do not exist.