I am not sure you can put a statement like this into the callback directly. I 
guess you'd have a function incrementing the version and
that would be added in the callback.


Regards,
Thorsten


Thorsten Kaufmann
Head of Production
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Von: nuke-users-boun...@support.thefoundry.co.uk 
[mailto:nuke-users-boun...@support.thefoundry.co.uk] Im Auftrag von Jon Wesström
Gesendet: Donnerstag, 29. März 2012 17:51
An: Nuke user discussion
Betreff: Re: [Nuke-users] A few python questions

Thank you so much, managed to solve the scriptname.

I no longer get the TypeError, but (int)version+1 doesn't really seem to do 
anything.
If i write:
int(version) + 1
print version

The result will always be 1

But if I write
version = version + 1
print version

It does what I want (adding one number every time i execute)
But I cant put that in the callback, because of the TypeError

What am I missing?


Regarding the framepadding, maybe I'm misunderstanding you, but I don't think 
that's quite what I'm after.

In the python script I have to numerical values, frame number & version number.
I use str(nuke.frame()) to get the frame number, so assuming I'm at frame 45 
printing nuke.frame() = 45.
However, I want it to use, at least four digits, so 45 should be 0045.
The same applies for the version number, which I want to be three digits.

I know I can write filname_####.dpx in the writenode, but again, that's not 
really what I'm after



I have already looked at nuke.sample, but there doesn't seem to be a way to 
fetch the already sampled pixels (shift + ctrl + mouse drag in viewer)
having to manually type in x & y coordinates isnt really worth it for me.

Again, a huge thanks for you help, I really appreciate it.

On Thu, Mar 29, 2012 at 4:35 PM, Diogo Girondi 
<diogogiro...@gmail.com<mailto:diogogiro...@gmail.com>> wrote:
To get just the filename you can do something like:

Import os
print os.path.basename( nuke.Root().name() )

Or

nuke.Root().name().split('/')[-1]

You can replace the / for os.sep()

For the TypeError you can simply do int(version)+1 assuming the version 
variable is assigned to a numerical character.

To use padded sequences just format your filename string correctly using either 
#### or %04d, I suggest you stick with %04d though.

To sample RGBA data look into nuke.sample on the docs.


Cheers,
Diogo


On 29/03/2012, at 11:14, Jon Wesström 
<jwesst...@gmail.com<mailto:jwesst...@gmail.com>> wrote:

I'm still very new to python/nuke scripting, so these questions might be dumb, 
but I'm getting tired of not being able to solve them.



I'm working on a tool that makes it easy to make breakdowns of a script, you 
basically select a node, press a button, and nuke renders out a frame.



That part of the tool is done, but I'm getting stuck on all the stuff that is 
generating the filename



1: When pressing the renderbutton, the script spawns a writenode, puts text in 
the file knob, renders the frame and then is deleted

(      nuke.removeAfterFrameRender(nuke.delete(nuke.toNode('FrameRender')))     
 )



That works fine, but I would also like to add an increment to the filename, so 
I figured this would work: nuke.removeAfterFrameRender(version = version + 1), 
but it gives me this error:

TypeError: cannot concatenate 'str' and 'int' objects.

I have tried a bunch of different ways to solve it, but nothing is working.



2: Is there a way to force python/nuke to display number using a set amount of 
increments?
Ex: I would prefer the frame do be written as 0015 in the filename, and not 15.



3: Is there a way to access the name of the script?

I know you can write nuke.root().knob('name').getValue(), but that outputs not 
only the name, but also the entire filepath.

4: Not related to this, but is there any way to access the rgba data that the 
viewer sampler samples?
Would like a stickynote that, when created writes down the currently sampled 
colors in RGBA.

If you would like to take a look at the entire script: 
http://slexy.org/view/s2gqT5q5Sq

Any help is greatly appreciated

/Jon Wesström

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