How do you count a string in python?

Question

In this tutorial, we will learn about the Python String count() method with the help of examples.

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Syntax of String count
count() Parameters
count() Return Value
Example 1: Count number of occurrences of a given substring
Example 2: Count number of occurrences of a given substring using start and end
Definition and Usage
Parameter Values
More Examples
Example 1: Implementation of the count() method without optional parameters
Example 2: Implementation of the count() method using optional parameters
How do you find the count of a string?
What is count () in Python?

The count() method returns the number of occurrences of a substring in the given string.

Example

message = 'python is popular programming language'

# number of occurrence of 'p'
print('Number of occurrence of p:', message.count('p'))

# Output: Number of occurrence of p: 4

Syntax of String count

The syntax of count() method is:

string.count(substring, start=..., end=...)

count() Parameters

count() method only requires a single parameter for execution. However, it also has two optional parameters:

substring - string whose count is to be found.
start (Optional) - starting index within the string where search starts.
end (Optional) - ending index within the string where search ends.

Note: Index in Python starts from 0, not 1.

count() Return Value

count() method returns the number of occurrences of the substring in the given string.

Example 1: Count number of occurrences of a given substring

# define string
string = "Python is awesome, isn't it?"
substring = "is"

count = string.count(substring)

# print count
print("The count is:", count)

Output

The count is: 2

Example 2: Count number of occurrences of a given substring using start and end

# define string
string = "Python is awesome, isn't it?"
substring = "i"

# count after first 'i' and before the last 'i'
count = string.count(substring, 8, 25)

# print count
print("The count is:", count)

Output

The count is: 1

Here, the counting starts after the first i has been encountered, i.e. 7th index position.

And, it ends before the last i, i.e. 25th index position.

❮ String Methods

Example

Return the number of times the value "apple" appears in the string:

txt = "I love apples, apple are my favorite fruit"

x = txt.count("apple")

print(x)

Try it Yourself »

Definition and Usage

The count() method returns the number of times a specified value appears in the string.

Syntax

string.count(value, start, end)

Parameter Values

Parameter	Description
value	Required. A String. The string to value to search for
start	Optional. An Integer. The position to start the search. Default is 0
end	Optional. An Integer. The position to end the search. Default is the end of the string

More Examples

Example

Search from position 10 to 24:

txt = "I love apples, apple are my favorite fruit"

x = txt.count("apple", 10, 24)

print(x)

Try it Yourself »

❮ String Methods

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Python String count() function is an inbuilt function in python programming language that returns the number of occurrences of a substring in the given string.

Syntax:
string.count(substring, start=…, end=…)
Parameters:
The count() function has one compulsory and two optional parameters.
Mandatory parameter:
substring – string whose count is to be found.
Optional Parameters:
start (Optional) – starting index within the string where the search starts.
end (Optional) – ending index within the string where the search ends.
Return Value:
count() method returns an integer that denotes number of times a substring occurs in a given string.

Example 1: Implementation of the count() method without optional parameters

Python3

string = "geeks for geeks"

print(string.count("geeks"))

Output:

Example 2: Implementation of the count() method using optional parameters

Python3

string = "geeks for geeks"

print(string.count("geeks", 0, 5))

print(string.count("geeks", 0, 15))

Output:

1
2

How do you find the count of a string?

First, we split the string by spaces in a. Then, take a variable count = 0 and in every true condition we increment the count by 1. Now run a loop at 0 to length of string and check if our string is equal to the word.

What is count () in Python?

Count() is a Python built-in function that returns the number of times an object appears in a list. The count() method is one of Python's built-in functions. It returns the number of times a given value occurs in a string or a list, as the name implies.

programming python count() trong python Count Python Count string Python Counter Python Function string Python Count list Python

How do you count a string in python?

Example

Syntax of String count

count() Parameters

count() Return Value

Example 1: Count number of occurrences of a given substring

Example 2: Count number of occurrences of a given substring using start and end

Example

Definition and Usage

Syntax

Parameter Values

More Examples

Example

Example 1: Implementation of the count() method without optional parameters

Python3

Example 2: Implementation of the count() method using optional parameters

Python3

How do you find the count of a string?

What is count () in Python?

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