Question

I have following code

import imp
from my_module import MyClass
import my_module

imp.reload(my_module)
print(MyClass == my_module.MyClass) # Result is False

Why the MyClass imported from my_module is not equal to my_module.MyClass?

Answer 1

The answer to your question is hidden at the line, where you reload your module. After such reload, python recompiles the whole module, recreate all objects inside it and load it.

So, when reloading module, there is created completely new class MyClass that is not the same object as it was before.

You can check this code:

import imp
from my_module import MyClass
import my_module
print(MyClass == my_module.MyClass) # Result is True
imp.reload(my_module)
print(MyClass == my_module.MyClass) # Result is False