Python enumerate() Function

The Python enumerate() function returns enumerated object of the specified iterable. An iterable object can be any data structure like list, tuple, set, string and dictionary, etc. It adds a counter as the key to the enumerated object. This function has one optional parameter which can be used to specify the starting point of the counter.

Syntax

enumerate(iterable, start)

Parameters

Example:

In the example below, the enumerate() is used to create enumerated object using iterables called MyList, MyString and MyDict.

MyList = [10, 20, 30, 40, 50]
x = enumerate(MyList)
print(list(x))


MyString = "Python"
x = enumerate(MyString, 1)
print(tuple(x))

MyDict = {
   "name": "John",
   "age": 25,
   "city": "London"
}
x = enumerate(MyDict, 1)
print(list(x))

x = enumerate(MyDict.values(), 1)
print(list(x))

The output of the above code will be:

[(0, 10), (1, 20), (2, 30), (3, 40), (4, 50)]
((1, 'P'), (2, 'y'), (3, 't'), (4, 'h'), (5, 'o'), (6, 'n'))
[(1, 'name'), (2, 'age'), (3, 'city')]
[(1, 'John'), (2, 25), (3, 'London')]