Python UI callbacks question?

[jasonhuang1115]

Hi,
I ran into a wall when trying to implement Python UI callbacks in Maya. Looking for some help to sort this out.
env: Windows 7, Maya 2013

I set up a custom folder structure as below:
root_folder

vray_script_folder

__init__.py

function01.py

function02.py

function03.py

userSetup.py

An environment variable is specified with the path pointing to the userSetup.py.

userSetup.py

def sampleFunction():
    import vray_script_folder
    ### menu creation stuff
    cmds.menuItem(p=customMenu, l='function label', c='import vray_script_folder; vray_script_folder.function01()')
    cmds.menuItem(p=customMenu, l='function label', c='import vray_script_folder; vray_script_folder.function02()')

__init__.py

import maya.cmds as cmds
try:
    from function01 import *
    from function02 import *
except:
    print 'something is wrong'

function01.py

import maya.cmds as cmds
def function01(arg1, arg2):
    cmds.setAttr(stuff)
    cmds.setAttr(stuff2)

It seems to me the code is executed just fine as I am able to see and interact with the custom menu in Maya until when I execute the function01, Maya throws me a 'module' object has no attribute 'function01' error. Did I not import the function01 properly or something?

Thanks!

[vlado]

I think that __init__.py should contain something different, but I don't know Python well enough to know what; I'll check. Looking at our own Python module, I would assume that in your case __init__.py just needs to be empty.

Best regard,
Vlado

[t.petrov]

jasonhuang1115:
Have you tried to remove all maya related code and to try this same file structure in a normal python interpreter?

[jasonhuang1115]

hmm....the __init__.py contains the code to load Vray plugin and set Vray as the renderer in the Render Globals, plus importing python scripts placed in the vray_script_folder. I will try to find the issue through a normal python interpreter...

[mfessenden]

Do you have an __init__.py file in the root folder?

Right now, you aren't referencing the vray_script_folder package properly in your function. Assuming that your root folder is "script_folder" try this:

def function01():
import script_folder
### menu creation stuff
cmds.menuItem(p=customMenu, l='function label', c='import script_folder.vray_script_folder; script_folder.vray_script_folder.fucntion01()')
cmds.menuItem(p=customMenu, l='function label', c='import script_folder.vray_script_folder; script_folder.vray_script_folder.fucntion02()')

Alternately, you could have an import statement in your root level __init__.py that imports the vray_script_folder.

I'd also be careful naming your modules and functions the same thing. It looks like you misspelled "fucntion01", but if you had spelled it properly, you would be importing a module and function with the same name into the same namespace.

[jasonhuang1115]

mfessenden, I have updated my sample folder structure and correct couple typos that create confusions. The indentation shows the folder/file structure. There is only one script folder called vray_script_folder. I do not have an __init__.py in the root folder. What I have in the root_folder is the userSetup.py where vray_script_folder is imported and custom menu is created. I did put an __init__.py in the vray_script_folder to try importing functions. What you suggest for the function01.py is what I tried to achieved in the userSetup.py.

Could you take a look at the sample code again and let me know what you think?

[mfessenden]

Try renaming your functions differently from the modules they are stored in.