Arrays in Python: Tuples

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Tuples are immutable sequences (cannot be modified after creation) defined with parentheses (). Operations (indexing, slicing) are similar to lists, but elements cannot be changed.

Creating and Deleting Tuples

Parentheses:

code.python 
>>> t = ('a', 0, {}, False)  # Tuple with mixed types
>>> t = 'a', 0, {}, False  # Parentheses optional
>>> t = (1,)  # Single-element tuple(comma required)
>>> type(t)  # <class 'tuple'>

tuple() Function: Convert iterables to tuples.

code.python 
>>> tuple()  # ()
>>> tuple('abcde')  # ('a', 'b', 'c', 'd', 'e')
>>> tuple(range(5))  # (0, 1, 2, 3, 4)

zip() Function: Combine multiple lists into tuples.

code.python 
>>> a = [1, 2, 3]
>>> b = [4, 5, 6]
>>> c = zip(a, b)  # <zip object>
>>> list(c)  # [(1, 4), (2, 5), (3, 6)]

Delete: Use del to remove the entire tuple.

Indexing and Slicing

Identical to lists, but elements cannot be modified:

code.python 
>>> t = (1, 2, 3)
>>> t[0]  # 1
>>> t[-1]  # 3
>>> t[1:5:2]  # (2, 4) (indices 1–4, step 2)
>>> t[1] = 3  # Error: 'tuple' object does not support item assignment

Basic Operations

Concatenation: (1, 2, 3) + (4, 5, 6) → (1, 2, 3, 4, 5, 6)

Repetition: ('Hi') * 3 → ('Hi', 'Hi', 'Hi')

Membership: 1 in (1, 2, 3) (True)

Length: len(t)

Min/Max: max(t), min(t)