Seonglae Choif a
__slots__ list or tuple is defined, then a class will not have a __dict__ to store arbitrary values, thus saving memory. Instead, only the attributes defined in __slots__ can be set.__slots__ are halfway between using a namedtuple and a regular class.Python Classes, namedtuples and __slots__ - maurodec.com
Data types are needed in pretty much every program that needs to store and
manipulate data. These types usually have little to no behavior and simply
exist to keep track of information in a structured and orderly way. Recently,
PEP 557 (Data Classes) was
accepted, however, it won’t appear until Python 3.7.
https://maurodec.com/blog/classes-namedtuples-slots/
Python __slots__ and object layout explained
Save memory using Python slots.
Python __slots__ are useful for saving memory when you have a large number of small objects whose attributes are known ahead of time. In this video we learn about __slots__, what slots actually are and how they work.
― mCoding with James Murphy (https://mcoding.io)
Source code: https://github.com/mCodingLLC/VideosSampleCode
Slots docs: https://docs.python.org/3/reference/datamodel.html#slots
Descriptor docs: https://docs.python.org/3/reference/datamodel.html#descriptors
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CHAPTERS
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0:00 Intro
0:43 Normal class
1:53 Slots class
2:44 Why use slots
4:21 Slots are descriptors
5:45 What are slots
8:32 Inheritance
9:14 No metaclass slots
9:24 Using a dict slot
https://www.youtube.com/watch?v=Iwf17zsDAnY
