Python treeview and recursion: help needed

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Hi,

I have a database with the following structure:

id name sublevel

for example

1 Node1 None
2 Node2 1
3 Node3 2
4 Node4 None
5 Node5 1
6 Node6 5
.....
.....


where Node1 and Node4 are treeview's master nodes, Node2 is a subnode of
Node1, Node3 is a subnode of Node2, Node5 is a subnode of Node1 and
Node6 a subnode of Node5 and so on

I need a recursive function to populate treeview and I'm stuck on this
function :confused:

I need a list where I have the master node with child node inside and if
a child node as others child nodes, I need thess nodes inside the child
nodes.

Something like this:

[
{"id":1,"name": "Node1","Childs ":[{"id:2","name": "Node2","Childs ":[{"id":3,"name": "Node3","Childs ":[]}]},
{"id":5,
"name":"Node5", "Childs":[{"id":6,"name": "Node6","Childs ":[]}]}]},{"id":4,"name ":"Node4","Chil ds":[]}
]

I'm using django so I access the data as

all=Data.object s.all()

and I can do something like

for a in all:
print a.id
print a.name

to get database value.

Any help is appreciated,

thanks,
Nicola