Trouble using sys.settrace

[tleeuwenburg at gmail.com]

The code below produces no output. I would expect to see:

tracing...
tracing...
tracing...
tracing...
tracing...


I was wondering if anyone had any experience with this.

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import sys

def mytrace(frame, event, arg):
    print "tracing..."

sys.settrace(mytrace)

def foo():
    for i in range(5):
        print i

foo()