Hey,
Now, to add another perspective, you can also declare instance variables in methods other than __init__. Though it’s not the most common approach, it can be useful in situations where the variable initialization depends on some logic that arises during the object’s lifecycle. Instead of setting the variable right in __init__, you can set it later with a specific method.
For example:
class Writer:
def set_custom_obj(self, custom_obj):
self.custom_obj = custom_obj # Declared within another method
In this case, custom_obj is initialized not during the object creation but when set_custom_obj is called. This can be helpful if the initialization of the variable requires additional logic or conditional behavior that shouldn’t necessarily be part of the __init__ method.