Mutability
Mutability in programming refers to the ability of an object to be changed or modified after it had been created. Depending on the type of object, it may either be:
Mutable: Can be changed after creation.
Immutable: Cannot be changed after creation.
Understanding mutability is important in programming to control how data behaves in memory.
Example of mutable objects are variable.
Example of immutable objects are constants.
Mutable Objects (Changeable)
What is a Mutable Object?
A mutable object is one that allows you to change its content (data) after it has been created without creating a new object. In simple terms, you can:
Add, remove, or update data.
Retain the same memory address after modification.
Examples of Mutable Objects
Lists → Example: ["apple", "banana", "cherry"]
Dictionaries → Example: {"name": "John", "age": 25}
Sets → Example: {1, 2, 3}
Bytearrays → Example: bytearray(b"hello")
Immutable Objects (Unchangeable)
What is an Immutable Object?
An immutable object is one that cannot be modified after it has been created. If you try to modify it, Python will create a new object instead of modifying the existing one.
Examples of Immutable Objects
Strings → Example: "apple"
Tuples → Example: ("apple", "banana")
Integers → Example: 5, 10, 20
Floats → Example: 3.14, 5.6
Booleans → Example: True, False
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