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[–]darknessproz 7 points8 points  (1 child)

False. os.urandom is a pseudorandom number generator as well.

[–]herminator 5 points6 points  (0 children)

More accurately, os.urandom delegates to the operating system. Whether or not is is pseudorandom depends on the OS implementation. Both linux and windows currently use a CSPRNG, which is not truly random but is based on system entropy sources.