[Zope] Brute force?

[Ragnar Beer]

I tried to get an external method to import a function from another 
python file which did't work if that other file was in the Extensions 
directory, too. So I tried out where it would work and ended up with 
my import file in zope/lib/python where it also was byte-compiled 
nicely after the next zope restart. But: this somehow felt to me like 
brute force. Where would one normally put a file to import from? Is 
there a strategy that I missed? Documentation?

Ragnar