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Tuples Tuples are ordered, immutable Sequences of items. This immutability is a key difference from Lists.

• Creation:

my_tuple = (1, 2, 3, "apple", 4.5)  # Using parentheses
another_tuple = 1, 2, 3  # Parentheses are optional for simple tuples
empty_tuple = ()
single_element_tuple = (1,) #Note the comma for single-element tuples

• Accessing Elements: Similar to Lists, use indexing.

print(my_tuple[0]])  # Output: 1
print(my_tuple[-1) # Output: 4.5

• Immutability: Attempting to modify a tuple after creation raises a TypeError.

my_tuple[0]] = 10  # Raises TypeError: 'tuple' object does not support item assignment

• Methods: Tuples have fewer methods than Lists because they are immutable. Common methods include:

  • count(): Counts the occurrences of an element.
  • index(): Returns the index of the first occurrence of an element.

• Tuple Packing and Unpacking:

packed_tuple = (1, 2, 3)
a, b, c = packed_tuple  # Unpacking
print(a, b, c)  # Output: 1 2 3

• Iteration: Iterate through tuples using loops (like for loops).

• Use Cases: Tuples are useful when you need an ordered collection of items that should not be changed. They’re often used to represent records or data that should remain constant.

Lists Mutable vs Immutable Types