Python | Remove spaces from a string

Given a string, write a Python program to remove all spaces from it.

Examples:

Input :  g e e k
Output : geek

Input : Hello World
Output : HelloWorld

There are various approaches to remove whitespaces in a string. The first one is the Naive approach, which has been discussed in this article. But here we will discuss all the approaches which are specific to Python.

Approach#1 : Using replace()

Using replace() function, we replace all whitespace with no space(“”).

# Python3 code to remove whitespace
def remove(string):
    return string.replace(" ", "")

# Driver Program
string = ' g e e k '
print(remove(string))

Output:

geek

Approach #2 : Using split() and join()

First we use split() function to return a list of the words in the string, using sep as the delimiter string. Then, we use join() to concatenate the iterable.

# Python3 code to remove whitespace
def remove(string):
    return "".join(string.split())

# Driver Program
string = ' g e e k '
print(remove(string))

Output:

geek

Approach #3 : Using Python regex

# Python3 code to remove whitespace
import re

def remove(string):
    pattern = re.compile(r'\s+')
    return re.sub(pattern, '', string)

# Driver Program
string = ' g e e k '
print(remove(string))

Output:

geek

Approach #4 : Using translate()

# Python code to remove whitespace
import string

def remove(string):
    return string.translate(None, ' \n\t\r')

# Driver Program
string = ' g e e k '
print(remove(string))

Output:

geek