"AttributeError: fileno" when attemping to import from pyevolve

Question

I just installed Pyevolve using easy_install and I am getting errors trying to run my first program. I first tried copy and pasting the source code of the first example but this is what I receive when I attempt to run it:

Traceback (most recent call last):
File "/home/corey/CTest/first_intro.py", line 3, in
from pyevolve import G1DList
File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/init.py", line 15, in
File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/Consts.py", line 240, in
import Selectors
File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/Selectors.py", line 12, in
File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/GPopulation.py", line 11, in
File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/FunctionSlot.py", line 14, in
File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/Util.py", line 20, in
AttributeError: fileno

I am running python 2.6 on Fedora 11 X86_64.

Edit: After looking into it more if I run python from the command line it works but it only fails when I'm running IDLE.

Answer 1

Have you tried to check out the Development version ? It's near of the RC1, so it is stable right now: svn co https://pyevolve.svn.sourceforge.net/svnroot/pyevolve/trunk pyevolve

Your problem seems to be the paths, try uncompressing the "egg" file and put the "pyevolve" directory in the site-packages or inside your application directory.