Intro to Python Programming

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Immutable

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Intro to Python Programming

Definition

Immutable means that an object cannot be altered after it is created. In Python, strings and tuples are examples of immutable objects.

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5 Must Know Facts For Your Next Test

  1. Immutable objects cannot change their values or state once they are created.
  2. Strings in Python are immutable; any operation that modifies a string creates a new string.
  3. Tuples are another example of immutable objects in Python, meaning their elements cannot be changed after creation.
  4. When passing immutable objects as parameters to functions, the original object remains unchanged even if the function attempts to modify it.
  5. String slicing returns a new string because strings are immutable.

Review Questions

  • What does it mean for an object to be immutable in Python?
  • Give two examples of immutable objects in Python.
  • How does immutability affect the behavior of strings when they are sliced?
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