python list indexing code example

Example 1: python list

#Creating lists
my_list = ['foo', 4, 5, 'bar', 0.4]
my_nested_list = ['foobar', ['baz', 'qux'], [0]]

#Accessing list values
my_list[2] # 5
my_list[-1] # 0.4
my_list[:2] # ['foo', 4, 5]
my_nested_list[2] # ['baz', 'quz']
my_nested_list[-1] # [0]
my_nested_list[1][1] # 'qux'

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

Example 2: python index of item in list

list.index(element)

Example 3: python get element from list

my_list = ["pizza", "soda", "muffins"]

my_list[0] # outputs "pizza"
my_list[-1] # outputs the last element of the list which is "muffins"
my_list[:] # outputs the whole list
my_list[:-1] # outputs the whole list except its last element

# you can also access a string's letter like this

Example 4: python lists

thislist = ["apple", "banana", "cherry"]
print(thislist[1])

Example 5: python index list in list

>>> list1 = [[10,13,17],[3,5,1],[13,11,12]]
>>> list1[0][2]
17

Example 6: python lists

fruits = ['apple', 'banana', 'mango', 'cherry']

for fruit in fruits:
  print(fruit)