def discard(self, entity):
		try:
			self.remove(entity)
		except KeyError:
			pass
Shuffle the sequence in place.
dataset/ETHPy150Open caseman/grease/grease/world.py/WorldEntitySet.discard--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/pycrypto-2.6.1/lib/Crypto/Random/random.py/StrongRandom.shuffle