Python Tuple

1. Creating a Tuple

empty_tuple = ()
single_element = (10,)   # Comma required for single-element tuple
numbers = (1, 2, 3, 4)
mixed = (10, "Python", True)

print(empty_tuple)
print(single_element)
print(numbers)
print(mixed)

Tuples are ordered, immutable collections used to store fixed data.

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2. Accessing Tuple Elements

colors = ("red", "green", "blue")

print(colors[0])    # First element
print(colors[-1])   # Last element

Like lists, tuples support indexing.

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3. Slicing Tuples

values = (0, 1, 2, 3, 4)

print(values[1:4])   # Output: (1, 2, 3)
print(values[:3])    # Output: (0, 1, 2)

Tuple slicing returns a new tuple.

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4. Tuple Immutability

coords = (10, 20)

# coords[0] = 30  # This will raise TypeError
print(coords)

Tuple elements cannot be modified after creation.

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5. Tuple Packing and Unpacking

person = ("Alice", 25, "Engineer")

name, age, profession = person

print(name)        # Alice
print(age)         # 25
print(profession)  # Engineer

Convenient for multiple assignments.

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6. Nested Tuples

data = ((1, 2), (3, 4), (5, 6))

print(data[1])       # Output: (3, 4)
print(data[1][0])    # Output: 3

Tuples can contain other tuples.

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7. Tuple Length and Membership

numbers = (10, 20, 30)

print(len(numbers))     # Output: 3
print(20 in numbers)    # Output: True

Supports standard sequence operations.

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8. Iterating Through a Tuple

languages = ("Python", "Java", "Go")

for lang in languages:
    print(lang)

Tuples are iterable like lists.

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9. Converting Between Tuples and Lists

values = (1, 2, 3)

list_version = list(values)
tuple_again = tuple(list_version)

print(list_version)   # [1, 2, 3]
print(tuple_again)    # (1, 2, 3)

Used when mutability is required temporarily.

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10. Tuple as a Return Value

def get_coordinates():
    return (40.7128, -74.0060)

lat, lon = get_coordinates()

print(lat)
print(lon)

Functions can return multiple values as tuples.

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