How do I generate 1/f (pink) noise in Python

[Max M]

I am dabling in algorithmical composition and at times I need to 
generate random values. Often the values should have the characteristics 
of pink noise (1/f).

My guess is that the random module can allready do this with one of the 
built in functions and the right parameters, but I must admit that my 
mathematical foundation isn't strong enough to deduct how to do it.

Speed is not of the essence here.

Google turns up nothing so does anybody know?

regards Max M