How do I safely use globals and singletons?

Learn how to safely use globals and singletons in Python, ensuring efficient memory usage and avoiding potential issues with shared state across your application.

Python, Globals, Singletons, Memory Management, Safe Practice, Programming Techniques


# Example of a Singleton in Python

class Singleton:
    _instance = None

    def __new__(cls, *args, **kwargs):
        if not cls._instance:
            cls._instance = super(Singleton, cls).__new__(cls)
        return cls._instance

# Using the Singleton
s1 = Singleton()
s2 = Singleton()

print(s1 is s2)  # Output: True

Python Globals Singletons Memory Management Safe Practice Programming Techniques

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