would should 'connectionInfo' return the path of an object that doesn't exist ?

[john.paul.giancarlo]

Hey guys, I am asking on behalf of user " Luke Titley "

bug report (BSPR-32543)

I hope you are doing well. We've discovered a little inconsistency in the python api, I wondered if you would be able to help us get to the bottom of it.

I've written a python script that demonstrates the issue.

# Open your most recent version of maya.

# Open the hypershade.

# Open the script editor

# Run this script.

#

# Why do the asserts fail?

#

from maya import cmds

cmds.polyCube()

shadingGroup = cmds.listConnections("pCubeShape1.instObjGroups[0]", destination=True)

destination = shadingGroup[0] + ".dagSetMembers[0]"

source = cmds.connectionInfo(destination, sourceFromDestination=True)

print "We have in input from the hypergraph shader ball: " + source

# But all of these commands seem to suggest that the input doesn't exist

print cmds.listConnections(destination, source=True) # Should print 'shaderBallGeomShape1.instObjGroups[0]'

print cmds.objExists(source)                         # Should print 'True'

print cmds.ls(source)                                # Should print ['shaderBallGeomShape1.instObjGroups[0]']

assert cmds.listConnections(destination, source=True)

assert cmds.objExists(source)

assert cmds.ls(source)

# I underatand that the shaderball is connected to the initialShading group in order to

# render it in the hypershade.

# I don't understand why connectionInfo returns a result that is inconsistent with

#    listConnections

#    objExists

#    ls

Appreciate any help you can provide.

All the best,

[Anonymous]

would like to see the official response as well