Since all of you want a warning, I'll add one back

but with improved wording.

I'm not all at comfortable with the wording of the second sentence.

I was the author of the SystemRandom() class and I only want

to guarantee that it provides access to the operating system's

source of random numbers. It is a bold claim to guarantee that

it is cryptographically secure (many such claims in the past have

turned-out to be false).  We don't really know what it is going to

do on a VM for example.

Also, I don't want to call SystemRandom() a pseudo-random number

generator.  It purports to be an actual random number generator

(or at least it purports to have used some real source of entropy at

some stage).  To me (the module maintainer), that is an important distinction.

Raymond