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#!/usr/bin/env python
"""
Tests the speed of "import sympy" by measuring it many times in a row and
averaging the values.
Usage:
$ bin/test_import
"""
from __future__ import print_function
n_tests = 50
from pexpect import run
from numpy import mean, std
from get_sympy import path_hack
def test():
t = run("python bin/test_import.py", cwd=path_hack())
t = float(t)
return t
tests = [test() for x in range(n_tests + 1)]
print("Note: the first run (warm up) was not included in the average + std dev")
print("All runs (including warm up):")
print(tests)
# skip the first run (warm up):
tests = tests[1:]
print("Number of tests: %d" % (n_tests))
print('The speed of "import sympy" is: %f +- %f' % (mean(tests), std(tests)))
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