Python 101 : __slots__ and data management.
For classes with small, simple data, we could save memory by using the __slots__ attribute to the class.
For example the Car class below:
With __slots__, python uses a smaller internal structure to represent the data of the different instances.
Normally python uses a dictionary structure to hold the class data, but with __slots__, it uses a list or a tuple which are more economic that dictionaries.
- With __slots__, we can't append other attributes to the class - we can only use the ones indicated in the __slots__ construct -.
- Multiple inheritance is not supported when using __slots__.