#a list
cars = ['Ford', 'Volvo', 'BMW', 'Tesla']
#some updates on list
cars.append('Honda')
cars.append('Tata')
#find length of list
length = len(cars)
print('Length of the list is :', length)
6# max length of walks
len(max(walks, key=len))
# min length of walks
len(min(walks, key=len))
# mean lenght of walks
mean([len(l) for l in walks])a_list_of_lists = [[1,2,3], [4,5,6], [7,8,9]]
length = sum([len(sub_list) for sub_list in a_list_of_lists])
print(length)
# Returns: 9alphabet=['a','b','c','d','e']
# length of list or size of a list
print('length of list:',len(alphabet))