#Interface segregation principle python software

They can be implemented as a IMachine interface and XeroxMachine implementation as shown below. The Interface Segregation Principle revolves around the idea that clients should not be forced to rely on methods they do not use. There are 5 principles: Single responsibility Open-closed Liskov substitution Interface segregation Dependency inversion. Instead of implements Foo, you do: class M圜lass (Foo): def bar () -> str: return 'string'. Instead of interface Foo, in Python you do this: import abc class Foo (abc.ABC): abc.abstractmethod def bar () -> str: pass.

This super xerox system could do a wide variety of jobs like printing, scanning, stapling, photocopying, etc. Python does support two important things though: abstract classes and multiple inheritance. It has annotations like NotNull, Max, Min, Size which are applied to the bean properties to ensure that the bean attributes meet the specific criteria. JSR 380 validation API is a good example that follows this principle. Let us take the example of a multi-purpose machine developed by Xerox. In the java world, we have a lot of frameworks that follow this principle.

#Interface segregation principle python software

It has become one of the key principles in modern software development to. Interfaces containing methods that are not specific to it are called polluted or fat interfaces.Ĭlients should not be forced to depend upon interfaces that they don’t use. SOLID principle is an acronym that stands for 5 key principles in software development: S Single Responsibility Principle. Interface segregation is a design principle that deals with the disadvantages of “fat” interfaces.

Here is what each letter in the acronym stands for: S: Single responsibility principle. Each letter in the acronym SOLID stands for a specific principle. This article explains the interface segregation principle and its uses. The SOLID design principles help us create maintainable, reusable, and flexible software designs.