remove idx from list python3 code example

Example 1: python how to remove elements from a list

# Basic syntax:
my_list.remove(element)

# Note, .remove(element) removes the first matching element it finds in
# 	the list.

# Example usage:
animals = ['cat', 'dog', 'rabbit', 'guinea pig', 'rabbit']
animals.remove('rabbit')
print(animals)
--> ['cat', 'dog', 'guinea pig', 'rabbit'] # Note only 1st instance of
#	rabbit was removed from the list. 

# Note, if you want to remove all instances of an element, convert the
#	list to a set and back to a list, and then run .remove(element)	E.g.:
animals = list(set['cat', 'dog', 'rabbit', 'guinea pig', 'rabbit']))
animals.remove('rabbit')
print(animals)
--> ['cat', 'dog', 'guinea pig']

Example 2: how to remove an item from a certain index in python

arr = [0, 1, 2, 3, 4]
del arr[1]
# arr is now equal to [0, 2, 3, 4]

Example 3: python list remove at index

a = ['a', 'b', 'c', 'd']
a.pop(1)

# now a is ['a', 'c', 'd']