Tuple

tuple Data Type

The predefined data type tuple is a collection data type.

A tuple is an ordered collection of elements.

The elements of a tuple have a position index starting with the value 0.

A tuple variable consists of elements separated by commas and delimited by parenthesis ( ).

Example

data = (2, 3, 5, 7)

The elements of a tuple can be of different types.

A Python tuple is bounded and iterable: you can iterate over these elements in a for loop.

A tuple variable is immutable in nature: unlike a list variable, a tuple variable cannot be modified.

A tuple variable can be considered a read-only list variable.

Nested tuple

A tuple can have one element of type tuple.

Access

You access the elements of a tuple using the [ ] and [:] operators.

Operations

The concatenation operator is the symbol +
The repetition operator is the symbol *
The membership operator is in
The non-membership operator is not in

Example

some_primes = (2, 3, 5, 7)
print (some_primes)
print (some_primes[0])
more_primes = (11, 13, 17, 19)
primes = some_primes + more_primes
print (primes)
print (primes[2:6])
print (primes[2:])

Length of a Tuple

The length of a tuple is the number of elements that make up the tuple.

The len() function gives the length of a tuple.

Example

colors = ('Red', 'Green', 'Blue')
print('Total elements:', len(colors))

Iteration Through a Tuple Items

A tuple is limited and iterable: we can iterate through its elements in a for loop.

We use the membership operator in to iterate through the elements of a tuple.

Example

fruits = ('apple', 'banana', 'orange')
# iterate through the tuple
for fruit in fruits:
   print(fruit)

Tuple Methods

Below are the built-in methods for tuples.