Lesson 36 of 55
15 mins readPython Implementing Interfaces with Classes
In Plain English
Classes can implement one or more interfaces, guaranteeing at compile time that all specified properties and methods exist with matching signatures.
Core Rules to Remember
implements: Binds a class to an interface contract at compile time.
Multiple Contracts: A single class can implement multiple independent interfaces.
Live Interactive Example
Hit Run Code to see it liveEnforcing Contracts on Classes
Python 3.12
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Output Console
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How it works: UserProfile implements both Serializable and Loggable, fulfilling both contracts completely.
Your Turn: Micro Challenge
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Micro Exercise
Implement HealthCheck Interface
- Declare interface HealthCheck with ping(): boolean and serviceName: string.
- Create class RedisHealth implementing HealthCheck with serviceName "Redis" and ping() returning true.
- Instantiate and print `${serviceName} status: ${ping()}`.
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Sandbox Output
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