Do you follow SOLID principles in software development?

Yes, I try to adhere to the SOLID principles when developing software, as they help create more maintainable, extendable, and understandable code.

The SOLID principles include:

• S (Single Responsibility Principle) — each class should have one responsibility.
• O (Open/Closed Principle) — software entities should be open for extension but closed for modification.
• L (Liskov Substitution Principle) — objects of subclasses should be interchangeable with objects of the base class.
• I (Interface Segregation Principle) — it is better to have several specialized interfaces than one universal interface.
• D (Dependency Inversion Principle) — dependencies should be based on abstractions rather than concrete implementations.

For example, in Python, I separate logic into classes with a single responsibility and use abstract base classes to define interfaces, which facilitates testing and code maintenance.