In this article we will discuss what is tuple, how its different from list, different ways to create a tuple and iterate over it.
What is a tuple ?
Tuple is a kind of heterogeneous sequential container that can store elements of different types. Tuples are immutable i.e once created then we can not change it’s contents.
A sample tuple is as follows,
tupleObj = ('Riti', 31, 'London', 78.88)
Unlike list, elements in tuple are wrapped using braces i.e. ‘(‘ & ‘)’
Difference between list and tuple
- List is mutable i.e once created then we can modify its contents. Whereas, a Tuple is immutable i.e. once created we can change its contents, therefore tuple doesn’t provide functions like append(), remove() etc.
- As tuple is immutable, so we can use it as key in a dictionary too.
Different ways to create a tuple
Create a tuple of different type of elements
We can create a tuple of different type of elements by just separating them with ‘,’ and wrapping them using braces i.e.
tupleObj = ('Riti', 31, 'London', 78.88) print(tupleObj)
Output:
Frequently Asked:
('Riti', 31, 'London', 78.88)
Create a tuple from unpacked elements
We can also create a tuple from unpacked elements i.e without any braces just elements separated by comma i.e.
tupleObj = 'Jake', 23, 'paris' , 89.33 print(tupleObj)
Output:
('Jake', 23, 'paris', 89.33)
Create an empty tuple
We can also create an empty tuple object like this,
# Creating an Empty Tuple emptyTuple = ()
Create a tuple from a list
We can also convert a list or any other sequential container to tuple by just type casting.
Suppose we have a list of int,
Latest Python - Video Tutorial
# List of numbers listOfNumbers = [12 , 34, 45, 22, 33 ]
Let’s create a tuple from this list,
# Create a tuple from list by type casting tupleObj = tuple(listOfNumbers) print(tupleObj)
Output:
(12, 34, 45, 22, 33)
Iterate over a tuple
We can iterate over a tuple using for loop and in operator just like any other container in python i.e.
tupleObj = ('Riti', 31, 'London', 78.88) for elem in tupleObj: print(elem)
Output:
Riti 31 London 78.88
Complete example is as follows,
def main(): print("****** Different ways to create Tuple ******") # Creating an Empty Tuple emptyTuple = () print(emptyTuple) print("Create tuple from different type of elements") tupleObj = ('Riti', 31, 'London', 78.88) print(tupleObj) print("Create tuple from unpacked elements ") tupleObj = 'Jake', 23, 'paris' , 89.33 print(tupleObj) print("Create tuple from List ") # List of numbers listOfNumbers = [12 , 34, 45, 22, 33 ] # Create a tuple from list by type casting tupleObj = tuple(listOfNumbers) print(tupleObj) print("*********** Iterate over tuple ***********") tupleObj = ('Riti', 31, 'London', 78.88) for elem in tupleObj: print(elem) if __name__ == '__main__': main()
Output:
****** Different ways to create Tuple ****** () Create tuple from different type of elements ('Riti', 31, 'London', 78.88) Create tuple from unpacked elements ('Jake', 23, 'paris', 89.33) Create tuple from List (12, 34, 45, 22, 33) *********** Iterate over tuple *********** Riti 31 London 78.88
Latest Video Tutorials