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41. Pythonic Implementations of Patterns

Some patterns are simplified in Python due to dynamic typing and built-ins.

Examples​

  • Singleton: often unnecessary, use modules
  • Factory: can be replaced with functions or dictionaries
  • Observer: can use callbacks or signals
def factory(kind):
    classes = {"dog": Dog, "cat": Cat}
    return classes[kind]()

Wrap-Up​

Many classical patterns simplify in Python thanks to its dynamic features.