I expect the PEP authors want to avoid the "while chunk == read()" class of bugs ninjaedit: indeed https://www.python.org/dev/peps/pep-0572/#why-not-just-turn-

I expect the PEP authors want to avoid the "while chunk == read()" class of bugs ninjaedit: indeed https://www.python.org/dev/peps/pep-0572/#why-not-just-turn-existing-assignment-into-an-expression https://www.python.org/dev/peps/pep-0572/#why-not-just-turn-...