Answers for "python delete item from list"

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

python how to remove item from list

list.remove(item)

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']

pytho. how to remove from a list

names = ['Boris', 'Steve', 'Phil', 'Archie']
names.pop(0) #removes Boris
names.remove('Steve') #removes Steve

python remove element from list

myList = ["hello", 8, "messy list", 3.14]  #Creates a list
myList.remove(3.14)                        #Removes first instance of 3.14 from myList
print(myList)                              #Prints myList
myList.remove(myList[1])                   #Removes first instance of the 2. item in myList
print(myList)                              #Prints myList


#Output will be the following (minus the hastags):
#["hello", 8, "messy list"]
#["hello", "messy list"]

python remove

# the list.remove(object) method takes one argument 
# the object or element value you want to remove from the list
# it removes the first coccurence from the list

generic_list = [1, 2, 2, 2, 3, 3, 4, 5, 5, 5, 6, 8, 8, 8]

generic_list.remove(1)

# The Generic list will now be:
# [2, 2, 2, 3, 3, 4, 5, 5, 5, 6, 8, 8, 8]