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Learn Deleting Elements in Python Lists: Removing Items Safely | Mastering Python Lists
Python Data Structures

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Deleting Elements in Python Lists: Removing Items Safely

The del keyword allows you to delete an element at a specific index in the list. This is useful when you know the exact position of the item you want to remove.

The syntax of del keyword is:

python
  • The statement starts with the keyword del;

  • Next, you typically identify the list item with its index, like list[index].

Let's say you have a list of cities in your travel itinerary:

python

You've decided to remove the city "Sydney", which is the last destination on your list. Using del and negative indexing:

12345
travel_wishlist = ["Paris", "Oslo", "Kyoto", "Sydney"] # Remove the last city del travel_wishlist[-1] print(travel_wishlist) # Output: ['Paris', 'Oslo', 'Kyoto']
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Now, the list is down to three cities:

You can remove any item from the list by using its index number.

Task

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You are working with the travel_wishlist list.

  • Remove the "Paris" and "Kyoto" cities from your travel_wishlist.
  • Use the del keyword two times to do this.

Solution

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SectionΒ 1. ChapterΒ 8

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book
Deleting Elements in Python Lists: Removing Items Safely

The del keyword allows you to delete an element at a specific index in the list. This is useful when you know the exact position of the item you want to remove.

The syntax of del keyword is:

python
  • The statement starts with the keyword del;

  • Next, you typically identify the list item with its index, like list[index].

Let's say you have a list of cities in your travel itinerary:

python

You've decided to remove the city "Sydney", which is the last destination on your list. Using del and negative indexing:

12345
travel_wishlist = ["Paris", "Oslo", "Kyoto", "Sydney"] # Remove the last city del travel_wishlist[-1] print(travel_wishlist) # Output: ['Paris', 'Oslo', 'Kyoto']
copy

Now, the list is down to three cities:

You can remove any item from the list by using its index number.

Task

Swipe to start coding

You are working with the travel_wishlist list.

  • Remove the "Paris" and "Kyoto" cities from your travel_wishlist.
  • Use the del keyword two times to do this.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 1. ChapterΒ 8
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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