python delete value from list code example

Example 1: python remove element from list

myList.remove(item) # Removes first instance of "item" from myList
myList.pop(i) # Removes and returns item at myList[i]

Example 2: delete element list python

list.remove(element)

Example 3: how to delete an item from a list python

myList = ['Item', 'Item', 'Delete Me!', 'Item']

del myList[2] # myList now equals ['Item', 'Item', 'Item']

Example 4: python remove value from list

# Below are examples of 'remove', 'del', and 'pop' 
#   methods of removing from a python list
""" 'remove' removes the first matching value, not a specific index: """
>>> a = [0, 2, 3, 2]
>>> a.remove(2)
>>> a
[0, 3, 2]

""" 'del' removes the item at a specific index: """
>>> a = [9, 8, 7, 6]
>>> del a[1]
>>> a
[9, 7, 6]

""" 'pop' removes the item at a specific index and returns it. """
>>> a = [4, 3, 5]
>>> a.pop(1)
3
>>> a
[4, 5]

""" Their error modes are different too: """
>>> a = [4, 5, 6]
>>> a.remove(7)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: list.remove(x): x not in list
>>> del a[7]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IndexError: list assignment index out of range
>>> a.pop(7)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IndexError: pop index out of range

Example 5: python remove by index

a = [0, 1, 2, 3, 4, 5]
el = a.pop(2)

Example 6: deleting a list in python

# deletes whole list
thislist = ["apple", "banana", "cherry"]
del thislist