You don't even need an external module to save your ids in memory :)
---
from maya import OpenMaya
# setup
if not globals().get("my_callbacks"): # this avoid overriding the ids on
re-run
my_callbacks = dict()
def addCallback(func):
idx = OpenMaya.MEventMessage.addEventCallback("timeChanged", func)
my_callbacks[idx] = func
return idx
def clearCallbacks():
for idx in my_callbacks.keys():
OpenMaya.MEventMessage.removeCallback(idx)
my_callbacks.clear()
# usage
def do_something(*args, **kwargs):
print "hello"
addCallback(do_something)
addCallback(do_something)
addCallback(do_something)
print my_callbacks # {id: func}
clearCallbacks()
print my_callbacks # empty
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