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lang-py
range()behaves the same asxrange().random.SystemRandom(), which should be as cryptographically secure as the OS supports. In modules that need cryptographic randomness, I often do:import random,random = random.SystemRandom()to replace the module with an instance of the class that provides OS crypto-randomness.SystemRandomis therandom.RandomAPI, with randomness provided byos.urandominstead of Mersenne Twister (os.urandomis backed by stuff like Window'sCryptGenRandom, UNIX-like/dev/urandom, etc.).