Advanced Python Development Tutorials, Guides & Insights

Metaclasses are often used in Object-Relational Mappers (ORMs) to define database models dynamically.

class ModelMeta(type):
    def __new__(cls, name, bases, dct):
        dct["table_name"] = name.lower()
        return super().__new__(cls, name, bases, dct)

class BaseModel(metaclass=ModelMeta):
    pass

class User(BaseModel):
    pass

print(User.table_name)  # Output: user

Debugging asynchronous code and generators can be tricky. Use these tools for better insights:

• asyncio.run: Use for structured coroutine execution.
• pytest-asyncio: A pytest plugin for testing coroutines.
• trio: An alternative asynchronous framework with powerful debugging features.