Web Reference: May 29, 2023 · In this article, we will dive into the world of Python Protocols and ABCs, exploring their individual characteristics and discussing the scenarios where one might be more suitable than the... To distinguish between protocol class variables and protocol instance variables, the special ClassVar annotation should be used. By default, protocol variables as defined above are considered readable and writable. To define a read-only protocol variable, one can use an (abstract) property. Jan 11, 2022 · In Python there are two similar, yet different, concepts for defining something akin to an interface, or a contract describing what methods and attributes a class will contain. These are Abstract Base Classes (ABCs) and Protocols.
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