Table of Contents
In this tutorial, we will learn about the Python List remove() method with the help of examples.
The remove()
method removes the first matching element (which is passed as an argument) from the list.
Example
# create a list prime_numbers = [2, 3, 5, 7, 9, 11] # remove 9 from the list prime_numbers.remove(9) # Updated prime_numbers List print('Updated List: ', prime_numbers) # Output: Updated List: [2, 3, 5, 7, 11]
1. Syntax of List remove()
The syntax of the remove()
method is:
list.remove(element)
2. remove() Parameters
- The
remove()
method takes a single element as an argument and removes it from the list. - If the
element
doesn’t exist, it throws ValueError: list.remove(x): x not in list exception.
3. Return Value from remove()
The remove()
doesn’t return any value (returns None
).
4. Example 1: Remove element from the list
# animals list animals = ['cat', 'dog', 'rabbit', 'guinea pig'] # 'rabbit' is removed animals.remove('rabbit') # Updated animals List print('Updated animals list: ', animals)
Output
Updated animals list: ['cat', 'dog', 'guinea pig']
5. Example 2: remove() method on a list having duplicate elements
If a list contains duplicate elements, the remove()
method only removes the first matching element.
# animals list animals = ['cat', 'dog', 'dog', 'guinea pig', 'dog'] # 'dog' is removed animals.remove('dog') # Updated animals list print('Updated animals list: ', animals)
Output
Updated animals list: ['cat', 'dog', 'guinea pig', 'dog']
Here, only the first occurrence of element ‘dog’ is removed from the list.
6. Example 3: Deleting element that doesn’t exist
# animals list animals = ['cat', 'dog', 'rabbit', 'guinea pig'] # Deleting 'fish' element animals.remove('fish') # Updated animals List print('Updated animals list: ', animals)
Output
Traceback (most recent call last): File ".. .. ..", line 5, in <module> animal.remove('fish') ValueError: list.remove(x): x not in list
Here, we are getting an error because the animals
list doesn’t contain 'fish'
.
- If you need to delete elements based on the index (like the fourth element), you can use the pop() method.
- Also, you can use the Python del statement to remove items from the list.
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