Inspired by the method freeze found in other languages like Javascript, this package tries to make immutable objects to make it easier avoiding accidental modifications in your code.

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Major highlights
freeze method creates objects with the same attributes of inputs that cannot be expanded or modified.
Frozen object creation is thread-safe.
Structural sharing: any frozen object is shared by all of its user objects. There is no copy performed, only reference.
cpython and pypy support.