Profiling programs/scripts?

[skanemupp]

how do i profile a program? i found out that there are some profilers
included in the standard library but couldnt really figure out how to
access/use them

 

[George Sakkis]

how do i profile a program? i found out that there are some profilers
included in the standard library but couldnt really figure out how to
access/use them

Did you actually read the docs ? There is an example in the stdlib
documentation:
http://docs.python.org/lib/hotshot-example.html

HTH,
George

 

[Mike Driscoll]

how do i profile a program? i found out that there are some profilers
included in the standard library but couldnt really figure out how to
access/use them

Are you talking about using PyChecker or nose or what? In other words,
do you want to check your script for errors, documentation issues,
compliance with PEPs or something else? Maybe you mean introspection?

If the latter, here are a few links on the subject:

http://www.ibm.com/developerworks/library/l-pyint.html
http://www.diveintopython.org/power_of_introspection/index.html
http://www.ginstrom.com/scribbles/2007/10/24/python-introspection-with-the-inspect-module/

If you want to do code coverage, PEPs stuff or checking for errors,
use PyChecker and PyLint or nose.

See the following for more info:

http://www.logilab.org/857
http://pychecker.sourceforge.net/
http://somethingaboutorange.com/mrl/projects/nose/

Mike

 

[Aaron Watters]

how do i profile a program? i found out that there are some profilers
included in the standard library but couldnt really figure out how to
access/use them

I put this at the bottom of my main module:

=== cut
if __name__=="__main__":
try:
from cProfile import run
except:
from profile import run
run("tests()")
=== cut

Here tests() is the function I want to profile. The cProfile
module, when available is better than the older profile module,
but it's only available in very recent Python installations.
The profile "run" function will run the tests function and print
a report on the timings and counts it found.

More info here:
http://docs.python.org/lib/profile.html

-- Aaron Watters
===
http://www.xfeedme.com/nucular/pydistro.py/go?FREETEXT=emulate+perl