Python List count()
Python List count() method
Python List count() method counts the number of occurrences of specified value in the list, and returns that count.
In this tutorial, you will learn the syntax of, and how to use List count() method, with examples.
Syntax of List count()
The syntax of List count() method is
list.count(value)You can read the above expression as: in the list, count items that match the value.
Parameters
count() method can take one parameter. Let us see the parameter, and its description.
| Parameter | Description |
|---|---|
| value | The value to be searched for, in the list, and count the occurrences of this value in the list. |
Return value
count() method returns an int value, representing the number of occurrences of given value in the list.
Examples
1. Count the occurrences of 'apple' in the list
In the following program, we take a list my_list with some string values. We have to count the number of occurrences of the value 'apple' in this list.
Call count() method on the list my_list, and pass the value 'apple' as argument to the method.
Python Program
my_list = ['apple', 'fig', 'apple', 'cherry']
count = my_list.count('apple')
print(f"Count : {count}")Output
Count : 2Since there are two occurrences of the given value in the list, the count() method returned an int value of 2.
2. Count the occurrences of 'banana' in the list
In this example, we shall count the number of occurrences of the value 'banana' in the list. We shall use the same list my_list from the previous example.
Since there are no items with the value 'banana', count should return 0.
Python Program
my_list = ['apple', 'fig', 'apple', 'cherry']
count = my_list.count('banana')
print(f"Count : {count}")Output
Count : 0Just as we mentioned, count() method returned 0.
Summary
In this tutorial of Python Examples, we learned about List count() method, how to use count() method to count the number of occurrences of a specified value in the list, with syntax and examples.