Insert keyframe on an object's custom property with Python

Question

How can I add keyframes to custom properties with python? Usually, I can use the function

object.keyframe_insert(data_path="location")

but I couldn't find the right data_path of a custom property.

Thanks ideasman42, it works perfectly. Never used StackExchenge and it is difficult for me to not at least thank you for your efficient help. But I didn't found where is the best place to put this thanks... — Salvatore, Oct 11, 2013 at 13:16
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ideasman42 · Accepted Answer · 2013-09-19 22:20:19Z

Keyframes on custom properties use Python's getitem/setitem syntax rather then getattr/setattr.

This matches python api, where you would access object.location as an attribute and object["prop"] for a custom property.

So you would need to write it like this:

object.keyframe_insert(data_path='["prop"]')

Note that you have to use " quotes, not ',
'["prop"]' can be written as "[\"prop\"]" too of course.

I think we have this documented, I'll have to double check though.

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