Blair Pierpont

You don't have access to each node's code, so the code itself would have to store python objects in the node's user data.

You can specify strings in userData, or objects in cachedUserData. So you could have the following in nodeA

class Foo(object):
pass

node.setCachedUserData('foo', Foo())
node.setUserData('bar', ‘baz’)

and then access it in nodeC with the following:

nodeA = node.inputs()
foo = nodeA.cachedUserData('foo')
bar = nodeA.userData('bar')

Keep in mind that userData is volatile, it gets deleted once the scene is closed. cachedUserData is stored in the file itself, and thus never deleted.

try out pop spin, pop drag spin.

If you base everything off of where your hip files exist then it can be extremely simple since you only use $HIP to determine the base directory.

datadir = $HIP/data
picdir = $HIP/pic
etc.

It can get more complicated when using logical paths but you can always overwrite $HIP in 456.cmd/456.py