PYTHON

list methods python

list.append(x) # append x to end of list
list.extend(iterable) # append all elements of iterable to list
list.insert(i, x) # insert x at index i
list.remove(x) # remove first occurance of x from list
list.pop([i]) # pop element at index i (defaults to end of list)
list.clear() # delete all elements from the list
list.index(x[, start[, end]]) # return index of element x
list.count(x) # return number of occurances of x in list
list.reverse() # reverse elements of list in-place (no return)
list.sort(key=None, reverse=False) # sort list in-place
list.copy() # return a shallow copy of the list

List methods Python

## Python has a set of built-in methods that you can use on lists.
append()  # Adds an element at the end of the list
clear()  # Removes all the elements from the list
copy()  # Returns a copy of the list
count()  # Returns the number of elements with the specified value
extend()  # Add the elements of a list (or any iterable), to the end of the current list
index()  # Returns the index of the first element with the specified value
insert()  # Adds an element at the specified position
pop()  # Removes the element at the specified position
remove()  # Removes the item with the specified value
reverse()  # Reverses the order of the list
sort()  # Sorts the list
## Happy coding :)

list methods in python

l1 = [1, 8, 7, 2, 21, 15]

 l1.sort() # sorts the list
  print(l1)

list functions

list.append()
list.clear()
list.copy()	
list.count()
list.extend()
list.index()     
list.insert()	
list.pop()	
list.remove()	
list.append()	
list.clear()	
list.copy()	
list.count()	
list.extend()	
list.index()	
list.insert()	
list.pop()	
list.remove()	
list.sort()	
list(sorted(list))    
list(reverse(x))	# x=string, tuple, range, list 

python list function

# empty list
print(list())

# vowel string
vowel_string = 'aeiou'
print(list(vowel_string))

# vowel tuple
vowel_tuple = ('a', 'e', 'i', 'o', 'u')
print(list(vowel_tuple))

# vowel list
vowel_list = ['a', 'e', 'i', 'o', 'u']
print(list(vowel_list))

list methods in python

x = list()
print(type(x))      # Output: <class 'list'>
print(dir(x))       # Gives us all the list methods

python list() method

# empty list
print(list())

# output: []

# vowel string
vowel_string = 'aeiou'
print(list(vowel_string))

#output: ['a', 'e', 'i', 'o', 'u']

# vowel tuple
vowel_tuple = ('a', 'e', 'i', 'o', 'u')
print(list(vowel_tuple))

#output: ['a', 'e', 'i', 'o', 'u']

# vowel list
vowel_list = ['a', 'e', 'i', 'o', 'u']
print(list(vowel_list))

#output: ['a', 'e', 'i', 'o', 'u']

List Operations in Python

my_list = ['p', 'r', 'o', 'b', 'l', 'e', 'm']

# Output: True
print('p' in my_list)

# Output: False
print('a' in my_list)

# Output: True
print('c' not in my_list)