Do you apply SOLID principles when developing your projects?

Yes, I apply SOLID principles when developing in Python, as they help create more maintainable, extendable, and readable code.

Briefly about SOLID principles:

• S (Single Responsibility Principle) — a 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's better to have many specialized interfaces than one universal interface.
• D (Dependency Inversion Principle) — dependencies should be based on abstractions, not on concrete implementations.

Example of applying SRP in Python:

class ReportGenerator:
    def generate(self):
        # report generation logic
        pass

class ReportSaver:
    def save(self, report):
        # report saving logic
        pass

Here, the responsibilities of generating and saving the report are separated, which simplifies maintenance and testing.