[Zope] Catching the print

In Linux I currently use the nohub program. $ nohub ./start & to start Zope. That's good, and in nohub.out I get the messages Zope throws. However, when I sometimes use print "I am here" in External Methods or products, that is also printed to stdout, but not into the nohub. Why?? How do I catch the print messages too? And on windows?