def precur(self):
        console.profuse("    Precur {0}\n".format(self.name))

        for act in self.preacts:
            if act():
                return True

        return False
C{_consumeLength} works as expected if the length specification
dataset/ETHPy150Open ioflo/ioflo/ioflo/base/framing.py/Frame.precur--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/test/test_protocols.py/NetstringReceiverTestCase.test_consumeLengthBorderCase1