Python enumerate()
Python enumerate() builtin function is used to create an enumerate object from a given iterable. The iterable must be a sequence, an iterator, or an object that supports iteration.
In this tutorial, we will learn about the syntax of Python enumerate() function, and learn how to use this function with the help of examples.
Syntax
The syntax of enumerate() function is
enumerate(iterable, start=0)Each __next__() call on this enumerate object returns a tuple: (index, value from iterable).
where
| Parameter | Required/ Optional | Description |
|---|---|---|
| iterable | Required | A sequence, an iterator, or an object that supports iteration. |
| start | Optional | An integer. This value represents the starting value of index to be returned in the tuples. |
Returns
The function returns enumerate object.
Examples
1. Enumerate Object from a List
In this example, we take a list and create an enumerate object from this list. We use for loop to iterate over this enumerate object.
Python Program
fruits = ['apple', 'banana', 'mango']
result = enumerate(fruits)
for x in result:
print(x)Output
(0, 'apple')
(1, 'banana')
(2, 'mango')2. Enumerate Object with Start Parameter
In this example, we provide start=2 for enumerate function.
Python Program
fruits = ['apple', 'banana', 'mango']
result = enumerate(fruits, start=2)
for x in result:
print(x)Output
(2, 'apple')
(3, 'banana')
(4, 'mango')Conclusion
In this Python Tutorial, we have learnt the syntax of Python enumerate() builtin function, and also learned how to use this function, with the help of Python example programs.