Re: [Numpy-discussion] Profiling Python codes with hotshot and KCachegrind

[Stefan v. d. W. <st...@su...>]

On Wed, Nov 08, 2006 at 01:32:44AM -0700, Fernando Perez wrote:
> Hi all,
>=20
> in the past, Arnd Baecker has made a number of very useful posts on
> this matter, and provided some nice utilities to do it.  I now needed
> to profile some fairly complex codes prior to a big optimization push,
> so I went over his material and wrote a little tool to make the whole
> process as painless as possible.  Here it is, hoping others may find
> it useful:
>=20
> http://amath.colorado.edu/faculty/fperez/python/profiling/

This looks very interesting.  It works for me on simple scripts, but
whenever I include the lines

from numpy.testing import set_local_path
set_local_path('../../..')

in the input, pycachegrind aborts with

  File "/home/stefan//lib/python2.4/site-packages/numpy/testing/numpytest=
.py", line 68, in set_local_path
    if f.f_locals['__name__']=3D=3D'__main__':
KeyError: '__name__'

I guess this is because the script is run in a separate namespace.
I've managed to work around the problem by changing the definition of
'run' to:

def run(code):
    loc =3D locals()
    loc['__name__'] =3D '__main__'
    loc['__file__'] =3D sys.argv[0]

    exec code in locals()


Cheers
St=E9fan