Python: Remove multiple spaces in a string

Python Regular Expression: Exercise-39 with Solution

Write a Python program to remove multiple spaces in a string.

Sample Solution:-

Python Code:

import re
text1 = 'Python      Exercises'
print("Original string:",text1)
print("Without extra spaces:",re.sub(' +',' ',text1))

Sample Output:

Original string: Python     Exercises                                                                        
Without extra spaces: Python Exercises 

Pictorial Presentation:

Python: Regular Expression - Remove multiple spaces in a string.


Flowchart: Regular Expression - Remove multiple spaces in a string.

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Python: Tips of the Day

Getting the last element of a list:

some_list[-1] is the shortest and most Pythonic.

In fact, you can do much more with this syntax. The some_list[-n] syntax gets the nth-to-last element. So some_list[-1] gets the last element, some_list[-2] gets the second to last, etc, all the way down to some_list[-len(some_list)], which gives you the first element.

You can also set list elements in this way. For instance:

>>> some_list = [1, 2, 3]
>>> some_list[-1] = 5 # Set the last element
>>> some_list[-2] = 3 # Set the second to last element
>>> some_list
[1, 3, 5]

Note that getting a list item by index will raise an IndexError if the expected item doesn't exist. This means that some_list[-1] will raise an exception if some_list is empty, because an empty list can't have a last element.

Ref: https://bit.ly/3d8TfFP