How do I measure the execution time of python unit tests with nosetests?

Question

有没有办法计算由nosetests运行的单个Python测试的执行时间？

Answer 1

You might try the nose plug-in posted here: https://github.com/mahmoudimus/nose-timer (or available via pip / PyPi). You can also use the built-in plugin --with-profile to do more serious profiling.

Answer 2

Alternatively:

python -m cProfile -o profile.out `which nosetests` .

The output from can be viewed using, for example, runsnakerun , which makes it visually very obvious where your performance problems are. (eg it might be in a common method that many tests indirectly call)