I've installed bagginsbill's Parmatic so that I can use the parameter dials for the VSS PR3 Template Skin.

First there was a problem where it couldn't find the Parmatic module, but I managed to fix that by changing the parmaticMenu.py script so that it added the Parmatic folder to the paths list.

Now I'm getting the following error when I click the Parmatic Updater button, and also every time I move the Main camera. Does anyone have any idea what's wrong, please?

Traceback (most recent call last):

  File "/Applications/Poser Pro/Runtime/Python/parmatic/parmaticUpdater.py", line 55, in ParmaticCallback

    ParmaticCameraUpdate()

  File "/Applications/Poser Pro/Runtime/Python/parmatic/parmaticUpdater.py", line 118, in ParmaticCameraUpdate

    for mat in materials:

TypeError: iteration over non-sequence

the last line is the error to fix .  for mat in materials: there is nothing in materials so you get the "iteration over non-sequence' error.  Pretty sure of it.  No idea how to fix it.  I would pm BB with this problem. It sounds like something in the install isnt quite right. 

You could encapsulate the for loop in a try-except clause:

    try:
        for mat in materials:
        .... (rest of the code at the same indentation level as the first line after the for statement)
    except:
        pass

Thanks for the advice, markschum and svdl. I didn't really want to bother bb with this directly, as it's probably something weird in my scene.

I think bb's previous code is already testing for materials in the current prop. But it uses "continue" where you (svdl) have suggested using "pass". I'll try using "pass" instead. Strange that no-one else has this problem, though.

for actor in scene.Actors():

    if not actor.IsProp():

        continue

    try:

        materials = actor.Materials()

    except:

        continue

    for mat in materials:
        ..........

Hmm, weird. If I read the script right, it'll test each actor for being a prop - if not, go to the next actor.
It should only reach the try: statement when the actor is a prop, and it should only reach the for statement if the Materials() function returns a value.

What might work is the following:

for actor in scene.Actors():
    if not actor.IsProp():
        continue
    try:
        materials=actor.Materials()
    except:
        continue
    if !materials:
        continue
    for mat in materials:
        ....

The red code should prevent the error from happening.

Me and my trusty sledgehammer deleted all the code to do with the Parmatic parameter for the main camera position, and that worked fine.

But I also went back to the original code and tried the extra test on the presence of materials.
The exclamation mark gives me a syntax error, but it works if I use the syntax " if not materials: ".

Being multi-lingual has its downside, n'est ce pas!

Thank you for your help, I really appreciate it.

The exclamation mark was a problem to me too, but "not" worked fine.

Thanks IsaoShi and everyone else... works a treat, now!