package order strangeness

[pure...@gmail.com]

Hello, 

I am seeing strange behaviour where the order of packages in my rez-env call is making things work/not work in a way that is difficult for me to understand.

so :

    rez-env gaffer ffmpeg -- gaffer

works fine (gaffer launches)

but:

    rez-env ffmpeg gaffer -- gaffer

fails (ImportError: No Qt binding were found.)

for gaffer my package commands are:

    env.PATH.append('{root}/gaffer/bin')

    env.GAFFER_STARTUP_PATHS.append('{root}/gaffer/startup')

    env.PYTHONPATH.append('{root}/gaffer/python')

    env.LD_LIBRARY_PATH.append('{root}/gaffer/lib')

and for ffmpeg my commands are:

    env.PATH.append("{root}/ffmpeg")

any idea what is going wrong??

[pure...@gmail.com]

Ok, 

I am guessing this is because gaffer wants to run its own python,

and if it is not first in the PATH variable then a different python gets run........   

so changing:

    env.PATH.append('{root}/gaffer/bin')

to:

   env.PATH.prepend('{root}/gaffer/bin')

has solved the issue.