Editing content of an enum attribute

[Bay]

Hi guys, 

             I've been working with an user interface that requires me to edit the content of an enum attribute (basically removing and adding to its contents) but i seemed to run into a snag so would appreciate any input. 

I created the attribute like so :

cmds.addAttr(at = 'enum', keyable=True, en = 'string1:string2:string3:string4:string5:string6', ln='Parent') 

and sought to adjust its content like so 

cmds.addAttr(e=True, en = 'string1:string2:string4:', ln='Parent')  

But i kept getting a 

# Error: line 1: RuntimeError: file <maya console> line 1: Attribute not found/supplied # 

Would anyone happen to know what I'm doing wrong ? 

Thank you

Gann Boon Bay

[damon shelton]

you should provide object arguments when coding to edit stuff, relying on selection only can cause issues, you can use cmds.ls(sl=True) as the argument as well

to edit the enum you have to provide the object.attr argument

using ln=  tries to rename the longname

cmds.addAttr('locator1', at = 'enum', keyable=True, en = 'string1:string2:string3:string4:string5:string6', ln='Parent') 

cmds.addAttr('locator1.Parent', e=True, en = 'string1:string2:string4:')

or 

cmds.addAttr(cmds.ls(sl=True)[0], at = 'enum', keyable=True, en = 'string1:string2:string3:string4:string5:string6', ln='Parent') 

cmds.addAttr(cmds.ls(sl=True)[0]+'.Parent', e=True, en = 'string1:string2:string4:')

or 

obj_name = cmds.ls(sl=True)[0]

cmds.addAttr(obj_name, at = 'enum', keyable=True, en = 'string1:string2:string3:string4:string5:string6', ln='Parent') 

cmds.addAttr(obj_name+'.Parent', e=True, en = 'string1:string2:string4:')

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[Bay]

Aha....I didn't know that. Thank you very much for the help! :) 

[Benson Black]

Thank you! This has been very helpful to me. Cheers!

[Bryan Money]

if we use pymel is there a more object oriented way of doing this?

import pymel.core as pm

sel = pm.ls(sl = True)

sel[0].addAttr('myEnum', at = 'enum', en = 'herp:aderp', k = True, h = False)

is nice as I can affect each PyNode directly but I get the same error Bay gets if I then use

sel[0].addAttr('myEnum', e = True, en = 'no:herps')

[Marcelo]

I believe “setEnums” is what you are looking for?

https://help.autodesk.com/cloudhelp/2022/JPN/Maya-Tech-Docs/PyMel/generated/classes/pymel.core.general/pymel.core.general.Attribute.html#pymel.core.general.Attribute.setEnums

On Thu, Sep 28, 2023 at 2:20 PM Bryan Money <1975g...@gmail.com> wrote:

Anyone know how to do this in pymel?

if I assign a maya transform via pymel and add an attribute it works fine

import pymel.all as pm

sel = pm.ls(sl = True)

sel[0].addAttr('myEnum', at = 'enum', en = 'herp:aderp:adoo', k = True, h = False)

but if I try to edit the options via the same command
sel[0].addAttr('myEnum', e = True, en = 'herp:aderp:adee:adoo')

if I have to do it via the cmds way (but with pm) that.. kinda ruins the whole object oriented programing that pymel is good-ish at.

On Thursday, August 31, 2023 at 3:31:50 AM UTC-7 Benson Black wrote:

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[Bryan Money]

one would think but I get the "invalid flag" error.

[Marcelo]

Hmm that's odd, the following works fine here on my end:

sel[0].myEnum.setEnums('herp:aderp:adee:adoo')

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[Bryan Money]

hmm.. it does work if I pass it as its own object, I might have to rewrite a bit of code then.. sweet!

quick question, is there any way to edit the value of an enum value? when I do it it looks fine on the surface but when trying to listEnums next I get "[label]=[int]" as the enumerate value when all I want is the "[label]" and said label to equate to [int]

example:

sel[0].myEnum.setEnums('herp:aderp:adee:adoo')

has labels of "herp" "aderp" "adee" "adoo", with respective values of 0, 1, 2, 3 .
but when I want to remove "adee" I want the values to remain the same, just skipping adee's value.
"herp" "aderp" "adoo" with respective values of 0, 1, 3

but if I do it this way

pm.addAttr(spcatr, e=True,
enumName=':'.join(['{}={}'.format(k, e) for k, e in spcatr.getEnums().items() if k != cntspc]))

where spcatr = sel[0].myEnum and cntspc = "adee" 
everything after "adee" (which no longer exists) comes in as the string "{k}={e}"