t.p.randbytes : module documentation

Cryptographically secure random implementation, with fallback on normal random.

Class	SecureRandomNotAvailable	Exception raised when no secure random algorithm is found.
Class	SourceNotAvailable	Internal exception used when a specific random source is not available.
Class	RandomFactory	Factory providing secureRandom and insecureRandom methods.
Function	_fromhex	Undocumented