Python Array pop() Method

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The Python array pop() method is used to remove an item at the specified index value from an array.

In this method, If we will not provide a index value it will remove the last element by default . A negative value can also be passed as a parameter to this method. When the specified index value is out of range then we will get IndexError.

Syntax

Following is the syntax of the Python Array pop() method −

array_name.pop(index)

Parameters

This method accepts integer value as a parameter.

Return Value

This method return the item that present at the given index.

Example 1

The following is the basic example of the Python array pop() method −

import array as arr
#Creating an array
my_array1 = arr.array('i',[100,220,330,540])
#Printing the elements of an array
print("Array Elements Before Poping : ", my_array1)
index=2
my_array1.pop(index)
print("Array Elements After Poping : ", my_array1)

Output

Following is the output of the above code −

Array Elements Before Poping :  array('i', [100, 220, 330, 540])
Array Elements After Poping :  array('i', [100, 220, 540])

Example 2

If we do not pass any argument to this method, it removes the last element i.e -1 element from an array.

Here in the following example we didn't pass the argument in pop() method −

import array as arr
#Creating an array
my_array2 = arr.array('i',[22,32,42,52])
#Printing the elements of an array
print("Array Elements Before Poping : ", my_array2)
my_array2.pop()
print("Array Elements After Poping : ", my_array2)

Output

Array Elements Before Poping :  array('i', [22, 32, 42, 52])
Array Elements After Poping :  array('i', [22, 32, 42])

Example 3

In this method, We can also pass negative index value as an argument. Here is an example −

import array as arr
#Creating an array
my_array3 = arr.array('d',[22.3,5.2,7.2,9.2,2.4,6.7,11.1])
#Printing the elements of an array
print("Array Elements Before Poping : ", my_array3)
index=-3
my_array3.pop(index)
print("Array Elements After Poping : ", my_array3)

Output

Array Elements Before Poping :  array('d', [22.3, 5.2, 7.2, 9.2, 2.4, 6.7, 11.1])
Array Elements After Poping :  array('d', [22.3, 5.2, 7.2, 9.2, 6.7, 11.1])

Example 4

If the index value is given index value is out of range, it will result in IndexError. Lets understand with following example −

import array as arr
#Creating an array
my_array4 = arr.array('i',[223,529,708,902,249,678,11])
#Printing the elements of an array
print("Array Elements Before Poping : ", my_array4)
index=8
my_array4.pop(index)
print("Array Elements After Poping : ", my_array4)

Output

Array Elements Before Poping :  array('i', [223, 529, 708, 902, 249, 678, 11])
Length of an array is: 7
Traceback (most recent call last):
  File "E:\pgms\Arraymethods prgs\pop.py", line 57, in <module>
    my_array4.pop(index)
IndexError: pop index out of range