Learn The enumerate() Function

The enumerate() function is incredibly useful when you need to access both the value and its index in a sequence, such as a list or a string. This allows you to work with items while keeping track of their position in the sequence.

In Python, lists are ordered data structures, meaning each item has a unique index. The enumerate() function makes it easy to retrieve both the index and the value simultaneously.

The syntax for using enumerate() is:

for index, value in enumerate(sequence):
    # Your code here

index: refers to the position of an element in the list. Python uses 0-based indexing, meaning the first element has an index of 0;
value: refers to the actual element at a given index.

Let's apply enumerate() to our travel_list to print each city along with its index:


              12345
            
travel_list = ['Monako', 'Luxemburg', 'Liverpool', 'Barcelona', 'Munchen']

# Printing all cities with their indexes
for index, city in enumerate(travel_list):
    print(str(index) + ' ' + city)

Task

Swipe to start coding

You're organizing your travel wishlist and want to add a short label to each country that includes its position in the list.

Use the enumerate() function to loop through the list of countries.
For each country, create a string that says something like: "Destination 1: France".
Store these strings in a new list called travel_rankings.

Solution

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Section 1. Chapter 6

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In Python, lists are ordered data structures, meaning each item has a unique index. The enumerate() function makes it easy to retrieve both the index and the value simultaneously.

The syntax for using enumerate() is:

for index, value in enumerate(sequence):
    # Your code here

index: refers to the position of an element in the list. Python uses 0-based indexing, meaning the first element has an index of 0;
value: refers to the actual element at a given index.

Let's apply enumerate() to our travel_list to print each city along with its index:


              12345
            
travel_list = ['Monako', 'Luxemburg', 'Liverpool', 'Barcelona', 'Munchen']

# Printing all cities with their indexes
for index, city in enumerate(travel_list):
    print(str(index) + ' ' + city)

Task

Swipe to start coding

You're organizing your travel wishlist and want to add a short label to each country that includes its position in the list.

Use the enumerate() function to loop through the list of countries.
For each country, create a string that says something like: "Destination 1: France".
Store these strings in a new list called travel_rankings.

Solution

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 1. Chapter 6

single

Swipe to show menu

In Python, lists are ordered data structures, meaning each item has a unique index. The enumerate() function makes it easy to retrieve both the index and the value simultaneously.

The syntax for using enumerate() is:

for index, value in enumerate(sequence):
    # Your code here

index: refers to the position of an element in the list. Python uses 0-based indexing, meaning the first element has an index of 0;
value: refers to the actual element at a given index.

Let's apply enumerate() to our travel_list to print each city along with its index:


              12345
            
travel_list = ['Monako', 'Luxemburg', 'Liverpool', 'Barcelona', 'Munchen']

# Printing all cities with their indexes
for index, city in enumerate(travel_list):
    print(str(index) + ' ' + city)

Task

Swipe to start coding

You're organizing your travel wishlist and want to add a short label to each country that includes its position in the list.

Use the enumerate() function to loop through the list of countries.
For each country, create a string that says something like: "Destination 1: France".
Store these strings in a new list called travel_rankings.

Solution

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

The enumerate() Function

Solution

Awesome!

The enumerate() Function

Solution

Awesome!

The enumerate() Function

Solution