Python: Move spaces to the front of a given string

Last update on June 12 2025 12:41:18 (UTC/GMT +8 hours)

Move spaces to front of string.

Write a Python program to move spaces to the front of a given string.

Pictorial Presentation:

Sample Solution:

Python Code:

# Define a function 'move_Spaces_front' that takes a string 'str1' as input.
def move_Spaces_front(str1):
    # Create a list 'noSpaces_char' containing all characters from 'str1' that are not spaces.
    noSpaces_char = [ch for ch in str1 if ch != ' ']

    # Calculate the number of space characters in the input string 'str1'.
    spaces_char = len(str1) - len(noSpaces_char)

    # Create a string 'result' containing the same number of space characters at the beginning.
    result = ' ' * spaces_char

    # Concatenate the 'result' string with the characters in 'noSpaces_char' and enclose it in double quotes.
    result = '"' + result + ''.join(noSpaces_char) + '"'

    return result  # Return the modified string.

# Call the 'move_Spaces_front' function with different input strings and print the results.
print(move_Spaces_front("w3resource .  com  "))
print(move_Spaces_front("   w3resource.com  ")) 

Sample Output:

"     w3resource.com"
"     w3resource.com"

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to rearrange a string so that all space characters appear at the beginning using list operations.
• Write a Python program to use string concatenation to move all spaces to the start while preserving the order of non-space characters.
• Write a Python program to implement a function that splits a string into spaces and non-spaces, then rejoins them with spaces leading.
• Write a Python program to iterate over a string and build two lists (spaces and non-spaces), then combine them with spaces first.

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