NameError: name Timer is not defined

Question

I have a small python program written for python 2.7.3:

import time
def fun():
    print('Hi')
for i in range(3):
    Timer(i, fun).start()

When I run it, I get the error:

NameError: name 'Timer' is not defined

How can I find out which module supports this functionality?

I've edited your question to pull out the opinion based question on Python 2 vs 3. — Andy, Jun 13 '14 at 17:22

score 5 · Accepted Answer · answered Jun 13 '14 at 17:22

5

Timer is in the timeit module, not time. And to call it like you want to, you would have to from timeit import Timer, not just import timeit. If you just declare import timeit, then you would have to write timeit.Timer instead of Timer everywhere in the code.

answered Jun 13 '14 at 17:22

Reloader

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Thanks, but i get the error : ValueError: stmt is neither a string nor callable – Atovange Jun 13 '14 at 18:01
You need `lambda` function - http://stackoverflow.com/questions/7523767/how-to-use-python-timeit-when-passing-variables-to-functions – Reloader Jun 13 '14 at 18:08
Then I get the error : AttributeError: 'Timer' object has no attribute 'start' – Atovange Jun 15 '14 at 18:55

score 0 · Answer 2 · answered Jun 13 '14 at 17:23

0

You are looking for the timeit module. You can use your existing code by replacing your current import:

from timeit import Timer

answered Jun 13 '14 at 17:23

Andy

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NameError: name Timer is not defined

2 Answers2