[Python] How to share an instance for classes as class variable? [duplicate]

Is there a way to share an instance of a class as a class variable?

I tried this, but it said that NameError: name '_Unit1__global_object_in_module' is not defined.

__global_object_in_module = SharedObject()

class Unit1:
...
global __global_object_in_module
_gl_object = __global_object_in_module
...

class Unit2:
...
global __global_object_in_module
_gl_object = __global_object_in_module
...


Because I thought that it caused the __global_object_in_module variable to be regarded as a class variable, but I'm not sure how to resolve this. Any help would be appreciated.

Environment

• python 3.10

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