Using the remove() Method: Deleting Specific Elements from Lists
The remove()
method deletes the first occurrence of a specific value in the list. This is particularly useful when you know the element's value but not its index.
The syntax of remove()
method is:
list.remove(value)
Now, you decide to remove "Kyoto" from your list because you've already visited it. Here's how you can do it:
12345travel_wishlist = ["Paris", "Oslo", "Kyoto", "Sydney"] # Remove a specific city travel_wishlist.remove("Kyoto") print(travel_wishlist) # Output: ['Paris', 'Oslo', 'Sydney']
If "Kyoto" isn't on the list, this code will raise an error.
12345travel_wishlist = ["Paris", "Oslo", "Rome", "Sydney"] # Remove a specific city travel_wishlist.remove("Kyoto") print(travel_wishlist) # ValueError: list.remove(x): x not in list
To avoid this, you can check if the city exists before removing it:
123456travel_wishlist = ["Paris", "Oslo", "Rome", "Sydney"] if "Kyoto" in travel_wishlist: travel_wishlist.remove("Kyoto") print(travel_wishlist)
Note
With the
remove()
method, you can only take out one item at a time.
Swipe to start coding
You are continuing to work with the travel_wishlist
list.
- Remove the elements
"Oslo"
and"Sydney"
from the list. - Use the
remove()
method to remove these elements.
Solution
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Using the remove() Method: Deleting Specific Elements from Lists
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The remove()
method deletes the first occurrence of a specific value in the list. This is particularly useful when you know the element's value but not its index.
The syntax of remove()
method is:
list.remove(value)
Now, you decide to remove "Kyoto" from your list because you've already visited it. Here's how you can do it:
12345travel_wishlist = ["Paris", "Oslo", "Kyoto", "Sydney"] # Remove a specific city travel_wishlist.remove("Kyoto") print(travel_wishlist) # Output: ['Paris', 'Oslo', 'Sydney']
If "Kyoto" isn't on the list, this code will raise an error.
12345travel_wishlist = ["Paris", "Oslo", "Rome", "Sydney"] # Remove a specific city travel_wishlist.remove("Kyoto") print(travel_wishlist) # ValueError: list.remove(x): x not in list
To avoid this, you can check if the city exists before removing it:
123456travel_wishlist = ["Paris", "Oslo", "Rome", "Sydney"] if "Kyoto" in travel_wishlist: travel_wishlist.remove("Kyoto") print(travel_wishlist)
Note
With the
remove()
method, you can only take out one item at a time.
Swipe to start coding
You are continuing to work with the travel_wishlist
list.
- Remove the elements
"Oslo"
and"Sydney"
from the list. - Use the
remove()
method to remove these elements.
Solution
Thanks for your feedback!
Awesome!
Completion rate improved to 3.23single