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Mastering Metaclasses and Dynamic Class Creation in 2024

Tutorial December 10, 2024
python

class DebugBase:
    def __init_subclass__(cls, **kwargs):
        print(f"Creating subclass {cls.__name__}")
        super().__init_subclass__(**kwargs)

class Subclass(DebugBase):
    pass
# Output: Creating subclass Subclass
  • Use metaclasses sparingly; they add complexity.
  • Prefer composition and decorators for simpler use cases.
  • Document your metaclasses thoroughly for maintainability.

Mastering Generators and Coroutines in 2024

Tutorial December 10, 2024
python

You can chain multiple generators to create data pipelines. For example:

def generate_numbers(start, end):
    for i in range(start, end):
        yield i

def filter_even(numbers):
    for num in numbers:
        if num % 2 == 0:
            yield num

def square(numbers):
    for num in numbers:
        yield num ** 2

# Chaining
numbers = generate_numbers(1, 10)
even_numbers = filter_even(numbers)
squared_numbers = square(even_numbers)

print(list(squared_numbers))  # Output: [4, 16, 36, 64]