Remove spaces from a string in Python

Understanding String Manipulation

Removing spaces from a string means eliminating all whitespace characters.

We will explore three different methods to achieve this in Python.

Method 1: Using a Loop

This method iterates through the string and copies only non-space characters.

def remove_spaces(s):
    result = "".join([c for c in s if c != ' '])
    return result

# Example usage
string = "Hello World!"
print("Filtered String:", remove_spaces(string))
            

Method 2: Using Recursion

This method removes spaces recursively.

def remove_spaces_recursive(s):
    if not s:
        return ""
    return ("" if s[0] == ' ' else s[0]) + remove_spaces_recursive(s[1:])

# Example usage
string = "Python Programming"
print("Filtered String:", remove_spaces_recursive(string))
            

Method 3: Using Replace()

This method uses Python's built-in replace() function.

# Using replace function
def remove_spaces_replace(s):
    return s.replace(" ", "")

# Example usage
string = "Remove spaces"
print("Filtered String:", remove_spaces_replace(string))