Python program to remove spaces from string without inbuilt function

In this tutorial, we are going to learn writing a python program to remove all the blank spaces present between the string given by the user. In this program we are not going to use any python inbuilt functions like isalpha().

Problem Statement

For any input string, we have to check for the blank space and then remove it from the string

For example :

Case1: If the user input the string ‘Edu cation’,

          The output should be ‘Education’.

Case2: If the user input the string ‘Pyth on Pro gram’,

          The output should be ‘PythonProgram’.

Our logic to remove all the blank spaces in a given string

• Our program will take any input string from the user and then checks for the presence of spaces between the characters of the string.
• The checking for the spaces is done with the help of string iteration methods (we are using the ‘for’ loop for our program).
• Here we will use comparison operator to indentify is there space is available.
• After checking for space presence in the string, the characters needed to get concatenated. To achieve that we will use various string concatenation methods defined by the python programming language.

Python code to remove all the blank spaces in a given string

#taking input from the user
string = input("Enter a String : ")
result=''
#iterating the string
for i in string:
    #if the character is not a space
    if i!=' ':
        result += i
print("String after removing the spaces :",result)

Output

Enter a String : que scol web site
String after removing the spaces : quescolwebsite

Explanation:

In this case, the input string is ‘que scol web site’, which consists of two spaces in the string. During the iteration of the string, While comparing using ‘if’ statement if space found then skips the spaces. And if no space found then concatenate the remaining character in the empty string ‘result’ and finally print the ‘result’ as the output of the program. In this case, the output is ‘quescolwebsite’.