how to do random / SystemRandom switch

[Matthias Kievernagel]

Dear list,

In my top-level script I want to select if my program
is to use random.xxx functions or the random.SystemRandom.xxx
ones. All the other modules shouldn't know about that
switch and simply use
  import random
  ...
  return random.randint(1, 6)
  ...
for example.

In C I would do a similar thing in the Makefile using
Compiler-/Link-Options (DEBUG/FINAL Build) switching
between two libraries.

Any hints are welcome, especially a search term
would be very helpful :)

Thanks in advance,
Matthias Kievernagel.