python get number of elements in list code example
Example 1: python number of elements in list of lists
# Basic syntax:
# Using list comprehension:
sum([len(elem) for elem in list_of_lists])
# Example usage:
# Say you want to count the number of elements in a nested list like:
nested_list = [ [1, 2, 3, 45, 6, 7],
[22, 33, 44, 55],
[11, 13, 14, 15] ]
sum([len(elem) for elem in nested_list])
--> 14
Example 2: python how to count all elements in a list
List = ["Elephant", "Snake", "Penguin"]
print(len(List))
# With the 'len' function Python counts the amount of elements
# in a list (The length of the list).
# In this case the output is '3' because there are 3 elements in the list.
Example 3: number of elements in list in python
# List of strings
listOfElems = ['Hello', 'Ok', 'is', 'Ok', 'test', 'this', 'is', 'a', 'test']
len(s)
Example 4: how to find length of list python
my_list = [1,2,3,4,5,6,7,8,9,10]
length_of_list = len(my_list)