Python program to count the number of spaces in string (original) (raw)

Last Updated : 10 Jan, 2025

In Python, there are various ways to Count the number of spaces in a String.

Using count() Method

count() method in Python is used to return the number of occurrences of a specified element in a list or string

Python `

s = "Count the spaces in this string."

Count spaces using the count() method

space_count = s.count(" ")

print(space_count)

`

**Explanation

• The**count(" ")** method counts how many spaces (" ") are present in the s, which in this case is "Count the spaces in this string.".
• The result, stored in space_count, is printed, showing the total number of spaces found in the string.

Let’s understand various other methods to count the number of spaces in a string.

Table of Content

• Using for Loop and Conditional Check
• Using split() Method
• Using re.findall() with Regular Expressions

**Using for Loop

Using a for loop with a conditional check allows us to iterate through a string or list and perform an action based on a specific condition, such as counting occurrences of a particular character

Python `

s = "Count the spaces in this string."

Initialize space counter

space_count = 0

Loop through each character in the string

for char in s: # Check if the character is a space if char == " ": # Increment space count space_count += 1

print(space_count)

`

**Explanation

• The for loop iterates through each character in the s, and the conditional check (if char == " ") determines if the character is a space.
• If a space is found, the space_count is incremented, and the total number of spaces is printed after the loop finishes.

**Using split()

split() method in Python splits a string into a list of substrings based on a specified delimiter, which can be used to count spaces by calculating the difference between the total number of words and one.

Python `

s = "Count the spaces in this string."

Split the string by spaces and count the spaces

space_count = len(s.split()) - 1

print(space_count)

`

**Explanation

• split() method divides the s into a list of words by spaces, and len() calculates the length of this list, representing the total number of words.
• By subtracting 1 from the word count, we get the number of spaces, since the number of spaces is always one less than the number of words.

**Using re.findall()

re.findall() function with regular expressions allows us to find all occurrences of a specific pattern, such as spaces, and count them by measuring the length of the resulting list.

Python `

Import the regular expression module

import re

Input string

s = "Count the spaces in this string."

Use re.findall() to find all spaces

space_count = len(re.findall(" ", s))

Print the number of spaces

print(space_count)

`

**Explanation

• The re.findall(" ", s) function searches for all occurrences of spaces in the s and returns a list of all spaces found.
• The len() function then calculates the number of spaces by measuring the length of this list, which is printed as the result.