how to find number of elements in a list python 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: how to find the amount of numbers in a list on python

>>> someList=[]
>>> print len(someList)
0

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)

Example 5: count number items in list python

mylist = ["abc", "def", "ghi", "jkl", "mno", "pqr"]

print(len(mylist))

# output 6