Python
Timing of code snippets
on the CLI
python -m timeit -- "for i in range(1000): i**2"
in ipython
u = None
%timeit u is None
in a script
import timeit
from functools import partial
# func without parameters:
def stupid_test():
L = [i for i in range(100)]
# func with parameters:
def another_test(x, y):
return x ** y
print(timeit.timeit(stupid_test, number=1000))
print(timeit.timeit(partial(another_test, x=10, y=2), number=100000))
Useful interpreter options
python -W ignore # ignore all warnings
python -O # remove assert statements
A complete list of interpreter options can be found here.