[Django]-Timeit is not working in the python manage.py shell

by

1👍

✅

I have encountered the same problem and have found no real solution. What works for a few lines of code like the one in your example, is putting them directly in the setup parameter of timeit():

>>> setup = 'd={"a":1, "b":2}\ndef a1():\n    for i in d:\n        a = i, d[i]\n'
>>> print "Time 1:", timeit.timeit('a1()', setup)
Time 1: 0.337239027023

Yet, while it does not help explain why the import in timeit doesn’t work in the django shell, why not implement your own timing function?

>>> import time 
>>> def time_function(fnc, number=10**6):
>>>     start = time.time()
>>>     for i in xrange(number):
>>>         fnc()
>>>     return time.time() - start

>>> print "Time 1:", time_function(a1)
Time 1: 0.3310558795928955
👤user2390182

5👍

timeit is executed in a different context, so it does not have access to symbols you import/define.

To do so you can either:

Use the setup parameter of its constructor.

timeit.timeit("a1()", setup="from __main__ import a1 as a1")

Use the globals parameter (Python >= 3.5) of its constructor to pass the global namespace.

timeit.timeit("a1()", globals=globals())

See the doc for more details.

👤sgable

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