weakref — Easy Examples

Weak references that don't prevent garbage collection

EasyIntermediateAdvancedExpert

Getting started with weakref

Basic import and usage of the weakref module.

python
import weakref

class BigObject:
    def __init__(self, name):
        self.name = name
    def __repr__(self):
        return f"BigObject({self.name})"

obj = BigObject("test")
ref = weakref.ref(obj)
print(f"Object: {ref()}")

del obj
print(f"After delete: {ref()}")

The weakref module is part of Python's standard library. Weak references that don't prevent garbage collection.

Common weakref operations

Frequently used functions from the weakref module.

python
# More weakref examples
import weakref

print(f"weakref module loaded successfully")
print(f"Location: {weakref.__name__}")
print(f"Has {len(dir(weakref))} attributes")

These are the most commonly used features of the weakref module.

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