Python List count() method

The count() method is used to find the number of times a specific element occurs in a list. It is very useful in scenarios where we need to perform frequency analysis on the data.

Let's look at a basic example of the count() method.

3

Explanation:a.count(1) counts the occurrences of 1 in the list, as it is occurring 3 times in the list so the output is 3.

Syntax

list_name.count(value)

Prameters:

• list_name: The list object where we want to count an element.
• value: The element whose occurrences need to be counted.

Return Type: it an integer value, which represents the number of times the specified element appears in the list.

Examples of count() method

Example 1: Lits Containing Different Datatypes

The count() method also works well with list that have different types of data.

2
3

Explanation:

• 'GfG' appears twice.
• 1 appears twice explicitly, but True is also counted because True == 1 in Python, making the total count three.

Example 2: Count occurrence of sub-list in list of Lists

The count() method does not search within nested lists and it will only count occurrences at the top level.

2

Explanation: The sublist [2, 3] is treated as a single element in the list. The count() method counts it twice because it appears twice as a nested list.

Example 3: Counting Word Frequency in a List

This example simulates word analysis in a sentence by counting how often a word appears.

count of python: 2
count of is: 2

Explanation:

• .split() method splits the string into a list of words.
• We use count() to check how many times "python" and "is" appear.

Related articles:

• Count occurrences of an element in a list
• How to Get the Number of Elements in a Python List?
• Find all elements count in list
• Find most frequent element in a list