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I need to get the hierarchy Data or store it into a dictionary from the outliner panel from Maya in the right order, how can i archive this ? , im working in autodesk maya and only can be store into a dict for further used as a .json file.
Take a look at my answer from this question: How to store and then retrive parent-child dependency data (Maya MEL/Python script)
Basically, there's a recursive function in there that starts from the top node and goes through the hierarchy storing everything into a dict.
Once you have that dict, it should be very easy to spit out a json file.
There's also some code for re-parenting everything.
hope that helps!