On May 5, 2010, at 10:33 PM, PixelMuncher wrote:
>> i'm curious what would make you think that it would not since that's
>> what the System Env installation instructions say to do?
>
> Thanks again Chad:
> Got it working in both versions, using Maya.env to point the way.
> That was easy.
glad to hear it.
> The source of my uncertainty about setting the 2011 pymel dir is this:
> After reading the install instructions, I concluded that there were 2
> potential places to tell Maya where pymel is located:
> 1) Maya.env and
> 2) System env
correct.
>
> When I decided to setup PyMEL for 2010, I wanted to use a single
> install, so I looked at the 2011 Maya.env and the system env to see
> where PyMEL was installed, but neither contained a PYTHONPATH var.
yes, 2011 is a special case because it comes with pymel installed, so there is
no need to have it setup via PYTHONPATH. but if you want to install a new
version, the same installation instructions apply. this could be clarified in
the docs.
> Since PyMEL was installed and working w/2011, I assumed that
> PYTHONPATH for 2011 must be hardwired or buried somewhere where I
> wouldn't find it.
mostly right. sys.path is the end-all / be-all of search paths in python.
PYTHONPATH is a user configurable variable that adds to the default set of
paths in sys.path. below i print out both PYTHONPATH and sys.path, so you can
see how the user configurable ends up near the top (paths at the top of
sys.path get searched first):
import os
for x in os.environ['PYTHONPATH'].split(':'): print x
print
import sys
for x in sys.path: print x
/Users/chad/Documents/dev/luma/python/thirdParty
/Users/chad/Documents/dev/luma/python/packages
/Applications/Autodesk/maya2010/Maya.app/Contents/MacOS
/Users/chad/Documents/dev/luma/python/thirdParty
/Users/chad/Documents/dev/luma/python/packages
/Applications/Autodesk/maya2010/Maya.app/Contents/Frameworks/Python.framework/Versions/Current/lib/python26.zip
/Applications/Autodesk/maya2010/Maya.app/Contents/Frameworks/Python.framework/Versions/Current/lib/python2.6
/Applications/Autodesk/maya2010/Maya.app/Contents/Frameworks/Python.framework/Versions/Current/lib/python2.6/plat-darwin
/Applications/Autodesk/maya2010/Maya.app/Contents/Frameworks/Python.framework/Versions/Current/lib/python2.6/plat-mac
/Applications/Autodesk/maya2010/Maya.app/Contents/Frameworks/Python.framework/Versions/Current/lib/python2.6/plat-mac/lib-scriptpackages
/Applications/Autodesk/maya2010/Maya.app/Contents/Frameworks/Python.framework/Versions/Current/lib/python2.6/lib-tk
/Applications/Autodesk/maya2010/Maya.app/Contents/Frameworks/Python.framework/Versions/Current/lib/python2.6/lib-old
/Applications/Autodesk/maya2010/Maya.app/Contents/Frameworks/Python.framework/Versions/Current/lib/python2.6/lib-dynload
/Applications/Autodesk/maya2010/Maya.app/Contents/Frameworks/Python.framework/Versions/Current/lib/python2.6/site-packages
/Users/chad/Library/Preferences/Autodesk/maya/2010/prefs/scripts
/Users/chad/Library/Preferences/Autodesk/maya/2010/scripts
/Users/chad/Library/Preferences/Autodesk/maya/scripts
notice all the paths that are inside maya's installation? the main location
for user modules and packages that have been installed for a particular copy of
python is the directory that ends in 'site-packages'. in 2011, that is where
pymel resides. but since paths added via PYTHONPATH supersede the default
paths already on sys.path, the manual install method of pymel overrides the
native install of pymel.
> Based on that research, it was not clear to me how
> I could be certain that I could change the PYTHONPATH for 2011 (2011
> is not mentioned in the docs and it is the first to include PyMEL in
> the install). Thus my attempt to point 2010 to the PyMEL install in C:
> \Program Files\Autodesk\Maya2011\Python...
> This led to an install problem which led to my request for assistance
> on this forum.
sounds to me like you outsmarted yourself :)
>
> Your documentation is extremely well written (as good as any I've
> encountered). I'm not a professional programmer, so I've gained some
> insight just reading your higher level explanations like "Why PyMEL"
> and "Python in Maya Done Right"
>
> I would still point out that, while I trust your writing and
> programming, I still don't know beyond a shadow of a doubt that 2010
> and 2011 are using 1.0.2. Is there a command to query the pymel
> version?
import pymel
print pymel.__version__
-chad
--
http://groups.google.com/group/python_inside_maya
