How do I get the last element in a list?

How do I get the last element in a list?

Any element in list can be accessed using zero based index. If index is a negative number, count of index starts from end. As we want last element in list, use -1 as index.

How do I extract the last 3 items from a list in Python?

Use slicing to get the last n elements of a list. Use the slicing syntax list[-n:] to get a list containing the last n elements of list .

How do you get the last value in a list or a tuple?

how do you access the last element of the tuple: A=(0,1,2,3) :

  1. +3. Use negative indexing A=(1,2,3) Print (A[-1]) Output 3 It will return last element Print(A[-2]) Output 2 It will return second last element of tuple.
  2. +5. A[-1]
  3. +2.
  4. A[-1]

How do you call the last element of an array in Python?

Use the indexing syntax array[length – 1] to get the last element in array .

  1. an_array = np. array([1, 2, 3])
  2. array_length = len(an_array)
  3. last_element = an_array[array_length – 1]
  4. print(last_element)

How do you get the last element in a Python list with negative indexing?

Quick solution: Use negative indexing -1. To access the last element of a Python list, use the indexing notation list[-1] with negative index -1 which points to the last list element. To access the second-, third-, and fourth-last elements, use the indices -2 , -3 , and -4 .

How do you slice the last element of a list in Python?

Get last item of a list by indexing. As the indexing in a list starts from 0th index. So, if our list is of size S, then we can get the last element of list by selecting item at index position S-1. It gives us the last item of list.

How do I get the last two elements of a list in Python?

Python sequence, including list object allows indexing. Any element in list can be accessed using zero based index. If index is a negative number, count of index starts from end. As we want second to last element in list, use -2 as index.

How do you remove the last two elements in a list Python?

pop() function. The simplest approach is to use the list’s pop([i]) function, which removes an element present at the specified position in the list. If we don’t specify any index, pop() removes and returns the last element in the list.

How do I get the last element in pandas?

Pandas iloc is used to retrieve data by specifying its integer index. In python negative index starts from end therefore we can access the last element by specifying index to -1 instead of length-1 which will yield the same result.

How do you find the last element of a slicing list?

Get last item of a list by slicing. We created a slice of list that contains only the last item of list and then we selected the first item from that sliced list. It gives us the last item of list.

How do I get the second last element of an array in Python?

How do I print the first and last elements of a list?

Let’s discuss certain ways to get the first and last element of the list.

  1. Method #1 : Using list index. Using the list indices inside the master list can perform this particular task.
  2. Method #2 : Using List slicing.
  3. Method #3 : Using list comprehension.

How to create and initialize list of lists in Python?

Initializing list using square brackets. We can initialize lists with empty square brackets[]while declaring the lists.

  • Initializing using list () method. There is another way for creating empty list using list () method.
  • Initialization of list using list comprehension method.
  • Initialization of list using list multiplication.
  • How do you make a list in Python?

    Lists that contain strings,where each item within the list will be placed within quotes: ListName =[‘Item1’,‘Item2’,‘Item3’,….]

  • Lists that contain numeric values,where each item will not be placed within quotes: ListName =[Item1,Item2,Item3,….]
  • Lists that may contain a combination of strings and numeric values
  • How to get item or element from list in Python?

    Use list comprehension. my_list =[[1,2,3],[11,12],[21]]last_items =[x[-1]for x in my_list]print (last_items)

  • Use zip () method to get each last item from sublists in a list.
  • Extract last list element from each sublist using numpy.
  • How to get the last element of array in Python?

    The array_pop () function removes the last element from an array and returns it. So it works perfectly fine to get the last element of the array, just make sure you also actually meant to remove it from the array.