IronPython 2 vs Python3

Scripting
1

Here is a script in IronPyron 2 that work fine and that i used to change the color of a box.

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image1144×524 125 KB

Here is the same script in New python 3 (Rhino 8)

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image985×592 96.7 KB

Any clues on this error?

2

Yes, apparently you can no longer do that - it says that the ‘color’ object returned by rs.ObjectColor() is not subscriptible - i.e. you can not parse it as a list.
If you run this in Py3:

import rhinoscriptsyntax as rs

obj=rs.GetObject()
color=rs.ObjectColor(obj)
for i in range(3):
    print(color[i])

You get:
TypeError: 'Color' object is not subscriptable

Whereas if you run it in Py2, you get the R,G,B returned

In Py3 you will need to do this - which also works in Py2:

import rhinoscriptsyntax as rs

obj=rs.GetObject()
color=rs.ObjectColor(obj)
rs.ObjectColor(obj,[color.R,color.G,color.B,25])

I do not know if this is something that is/will be considered a bug, there are lots of these little things that work differently in Py2 and Py3.

2 Likes
3

I believe @eirannejad is investigating ways to support this syntax in the future.

1 Like