Enumerate with different Start in Python

Python - Enumerate with different start

In enumerate() builtin function, the default value for start parameter is zero. We can override this behavior by setting a specific value for start parameter. This lets us enumerate a given iterable with a different starting index.

Examples

1. Enumerate with start=2

In this example, we take a list myList, and create an enumerated object from the given list, with a start index of 2.

Python Program

myList = ['apple', 'banana', 'mango', 'cherry']
enumeratedList = enumerate(myList, start=2)

for item in enumeratedList:
    print(item)

Output

(2, 'apple')
(3, 'banana')
(4, 'mango')
(5, 'cherry')

2. Enumerate with start=-10 (Negative Index)

In this example, we take a list myList, and create an enumerated object from the given list, with a start index of -10, a negative value.

Python Program

myList = ['apple', 'banana', 'mango', 'cherry']
enumeratedList = enumerate(myList, start=-10)

for item in enumeratedList:
    print(item)

Output

(-10, 'apple')
(-9, 'banana')
(-8, 'mango')
(-7, 'cherry')

Summary

In this tutorial of Python Examples, we learned how to enumerate an iterable with a specific starting index.