[SOLVED] Why can't I change a variable in a list?

[span4ev]

Here I have a list:

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init:
    $ nums = ['one', 'two', 'three']
    $ num = 'one'

The list is a mutable object. For python it would be perfectly fine to do something like this:

nums[0] = 'something'
nums[-1] = 'something'

But it doesn't work for SetVariable

Here it works:

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action SetVariable('num', 'something')

This is no longer working:

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action SetVariable('nums[0]', 'something')

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screen nansns:
    frame: 
        vbox:
            text num  # one
            text nums # one two three
            textbutton 'Change':
                action SetVariable('num', 'something') # it works

                action SetVariable('nums[0]', 'something') # The variable nums[0] does not exist 

[Ocelot]

This is to be expected: there is no variable nums[0]. There is variable nums which can be indexed to acccess another object, but does not make nums[0] a valid variable name. Even in Python anything accessing variables by name will break on trying to access object at list index.

Just use Function with custom Python function to access object you want.

[enaielei]

If you want to set an item in a dict/list use SetDict.

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action SetDict("nums", 0, "something")

[span4ev]

This is to be expected: there is no variable nums[0]. There is variable nums which can be indexed to acccess another object, but does not make nums[0] a valid variable name. Even in Python anything accessing variables by name will break on trying to access object at list index.

Just use Function with custom Python function to access object you want.

Yes you are right. SetVariable is a change to a variable, not one of the collection's values...

[span4ev]

If you want to set an item in a dict/list use SetDict.

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action SetDict("nums", 0, "something")

Thank You!
Only the variable name must be without quotes

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action SetDict(nums, 0, "something")

Thank You!