Today we are going to How to create a tuple in python. A tuple is a collection of items. Tuples are faster than lists in Python because tuples are immutable which means the items can not be changed once they are assigned, but we can change the items of a list. In this post, we are going to understand easy ways how to create/make a tuple in python?.
Let us understand how to create tuples in Python.
Different ways to create tuple in Python
First, we will see how to create an Empty tuple which is used as a placeholder. Tuple in python represents by () parathesis. So to make empty tuples we are using the () parenthesis and verify the type of collection using the type() method and it is returning type as ‘tuple’.
1. Create an Empty Tuple in Python
Langtuple = ()
print('The empty tuple=',Langtuple)
print(type(Langtuple))
Output
The empty tuple= ()
<class 'tuple'>
2. Makes a Non empty Tuple
Tuples in python is create by using () parenthesis. In this example we are creating a non empty Tuple with three items of tuple of string data types.
#non-empty tuple
langtuple = ('tuple', 'python','C#')
print('one way to define non_empty tuple =\n',langtuple)
Output
one way to define non_empty tuple =
('tuple', 'python', 'C#')
3. Create Tuple of mixed datatypes
Tuples in Python can have data of any datatype it can be int, string, float. Here we are creating tuple with mixed data types includes int, string, float.
Langtuple = (1, "C#", 3.4,'C++')
print('mixed type tuple=',Langtuple)
Output
mixed type tuple= (1, 'C#', 3.4, 'C++')
4. Nested string and List tuple
We can create a nested tuple in python, In this example, we are creating a tuple that contains string items tuple(langtuple), int items tuple (tupint), and list(mylist) as items of the tuple. We are passing all three( langtuple,tupint,mylist) to () parathesis to separated by comma(,) to create a nested tuple.
#defining a non-empty tuple
langtuple = ('non-empty','tuple','in','python')
mylist = [1, 2, 3]
tupint = (8, 4, 6)
#creating a nested tuple
nested_tuple = (langtuple, tupint, tuple(mylist))
print('nested tuple in python = \n',nested_tuple)
Output
nested tuple in python =
(('non-empty', 'tuple', 'in', 'python'), (8, 4, 6), [1, 2, 3])
5. Create a list of tuples
Sometimes we need to create a tuples list of tuples, To create a list of tuples in the below example we are using the zip() method and passing the lists(strlist,numlist) to create a list of tuples.
strlist = ['non-empty','tuple','in','python']
numlist =[12,14,15,16]
list_of_tuples = list(zip(strlist,numlist))
print('list of tuples: \n',list_of_tuples)
Output
list of tuples:
[('non-empty', 12), ('tuple', 14), ('in', 15), ('python', 16)]
6. Make list of tuples from dictionary
We can create/make a tuple from dictionary collection of python.In this blow code example we are going to understand how to achieve this.
mydict = {'a':12,'b':15,'c':16}
dict_to_list_of_tups = list(dict.items(mydict))
print('type:',type(dict_to_list_of_tups ))
print('list of Tuples from dict :\n',dict_to_list_of_tups)
Output
type: <class 'list'>
list of Tuples from dict :
[('a', 12), ('b', 15), ('c', 16)]