The main common option would be to use the profile(or cprofile) module.There are two different ways of using it :
As a module, by directly running
In your code, by importing the utilities
Bonus : You can use several options for sorting results using the -s switch (cumulative/name/time/file sorting are available).
If you want to avoid using a command line, or you don't have the profile module installed; here os another possibility. There is also the timeit module available.
I use this option on Eclipse because I didn't want to install the profile module on Windows.
This is however less clear, and way less detailed while still useful :).
Choose you profiler option and get on Project Euler!