Solved Un-commenting Message function of python tag results in RuntimeError

Hi guys,

I don't know if this any news but I think I found a bug in def message(id: int, data: object) -> bool: of the python tag. Un-commenting this method results in the following error.

Traceback (most recent call last):
  File "Python", line 20, in message
RuntimeError: super(): __class__ cell not found

I observed this in S26 if that helps.

Cheers,
Sebastian

from typing import Optional
import c4d

doc: c4d.documents.BaseDocument # The document evaluating this tag
op: c4d.BaseTag # The Python scripting tag
flags: int # c4d.EXECUTIONFLAGS
priority: int # c4d.EXECUTIONPRIORITY
tp: Optional[c4d.modules.thinkingparticles.TP_MasterSystem] # Particle system
thread: Optional[c4d.threading.BaseThread] # The thread executing this tag

def main() -> None:
    # Called when the tag is executed. It can be called multiple time per frame. Similar to TagData.Execute.
    # Write your code here
    pass


def message(id: int, data: object) -> bool:
    # Called when the tag receives messages. Similar to TagData.Message.
    # Write your code here
    return super().Message(id, data)

"""
def draw(bd: c4d.BaseDraw) -> bool:
    # Called to display some visual element in the viewport. Similar to TagData.Draw.
    # Write your code here
    return True
"""

Hi the issue is that normally when you implement a tag you are within a class and more especially a TagData which inherit from a NodeData therefor you can call the method "super" without issue because there is indeed a class. But in this case there is no TagData instance, so for the moment there is no good way to propagate the message and you should return True.

And I know this is the default code, this will be looked at and fixed within a future version.
Cheers,
Maxime.

Hi the issue is that normally when you implement a tag you are within a class and more especially a TagData which inherit from a NodeData therefor you can call the method "super" without issue because there is indeed a class. But in this case there is no TagData instance, so for the moment there is no good way to propagate the message and you should return True.

And I know this is the default code, this will be looked at and fixed within a future version.
Cheers,
Maxime.

Hi @m_adam,

alrighty, good to know that this will be looked into and eventually get fixed.

Yes, I remember I returned True in the past. In the python tag as well as in the TagData equivalent. As returning super didn't work.

Thanks for the information anyway.

Cheers,
Sebastian