I want to understand the difference between delete remove and pop in Python

Question

As all the three mentioned above are used to remove an element from a list, I want to understand when to use which method?

Answer 1

Hi,

Lets look at all the methods one by on:

1) Remove

This method has nothing to do with index, it removes the first matching element present in the list.

Syntax: 

list.remove(value)

Input:

a=[2,6,7,2]
a.remove(6)
a

Output:

[2, 7, 2]

2) Delete

This method removes an element from specified index.

Syntax:

del list[index]

Input:

 a=[2,6,7]
 del a[1]
 a

Output:

[2, 7]

3) Pop

This method removes an element at a specified index and returns it.

Syntax:

list.pop[index]

Input:

a= [2,6,7]
a.pop(1)
a

Output:

[2, 7]

Difference:

• Remove() deletes the matching element from the list whereas the del and pop removes the element present at specified index
• Difference between pop and del is that pop returns the deleted value whereas del does not