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In this example we will get a length of a list in python
Example 1
In this Python list length example, we declare an empty one. We then use the len function to calculate the length of the list.
Next, we declare a list of integers and then we use the len function to calculate the length of the list.
emptyList = [] print(len(emptyList)) myList = [1, 2, 3, 4, 5, 6, 7, 8, 9] print(myList) print(len(myList))
You will see the following
>>> %Run lengthlist.py 0 [1, 2, 3, 4, 5, 6, 7, 8, 9] 9
Example 2
This example shows the total number of string items or the total number of words in the string List.
myList = ['This', 'is', 'a', 'string', 'list'] print(myList) print( len(myList))
You will see the following
>>> %Run lengthlist1.py ['This', 'is', 'a', 'string', 'list'] 5
Example 3
This example uses length_hint()
from operator import length_hint # Initializing list myList = ['This', 'is', 'a', 'string', 'list'] # Printing test_list print ("The list is : " + str(myList)) # Finding length of list using len() listlength = len(myList) # Finding length of list using length_hint() listlengthhint = length_hint(myList) # Printing length of list print ("Length of list using len() is : " + str(listlength)) print ("Length of list using length_hint() is : " + str(listlengthhint))
You will see the following
>>> %Run lengthlist2.py The list is : ['This', 'is', 'a', 'string', 'list'] Length of list using len() is : 5 Length of list using length_hint() is : 5
Link
This is in our github repository