how to pause a forked process

[j vickroy]

Hello,
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How can execution be paused in a child process?

This is what I tried:

import os
import time

pid = os .fork()

if pid == 0: # child
    # do some work
    time .sleep (5)

else: # parent
    # do some work

The sleep() call is flagged as:
    AttributeError: sleep

The above code is part of a Tkinter application.  Could this error have
anything to do with that?

Thanks for your time.