Removing Array Items in Python: Methods and Techniques

Discover how to remove items from Python arrays using methods like remove() and pop(). Learn how to delete elements by value or position with practical examples and code snippets.

Removing Array Items in Python

Python arrays are mutable sequences, allowing easy addition and removal of elements. You can remove an element by specifying its value or position. The array module provides two methods: remove() and pop(). The remove() method removes an element by value, while the pop() method removes an element by its position.

Remove First Occurrence

To remove the first occurrence of a value, use the remove() method. This method accepts an element and removes it if available in the array.

import array as arr

# creating array
numericArray = arr.array('i', [111, 211, 311, 411, 511])

# before removing array
print("Before removing:", numericArray)
# removing array
numericArray.remove(311)
# after removing array
print("After removing:", numericArray)

Before removing: array('i', [111, 211, 311, 411, 511])
After removing: array('i', [111, 211, 411, 511])

Remove Items from Specific Indices

To remove an element from a specific index, use the pop() method. This method removes an element at the specified index and returns it.

import array as arr

# creating array
numericArray = arr.array('i', [111, 211, 311, 411, 511])

# before removing array
print("Before removing:", numericArray)
# removing array
numericArray.pop(3)
# after removing array
print("After removing:", numericArray)

Before removing: array('i', [111, 211, 311, 411, 511])
After removing: array('i', [111, 211, 311, 511])