PYTHON PROGRAM • MODULES, DATES & REGULAR EXPRESSIONS

Replace Repeated Spaces with Regex in Python

Learn replace repeated spaces with regex in python with a short, executable Python example.

Beginnerre.sub()Whitespace

PROBLEM UNDERSTANDING

Input and expected output

Sample input

No input required

Sample output

Learn Python daily

COMPLETE PYTHON PROGRAM

Complete Python implementation

import re
text = 'Learn   Python  daily'
print(re.sub(r'\s+', ' ', text))

CURRENT STEP

Select Start to walk through the important lines.

SELECTED LINE

No line selected

EXPECTED OUTPUT FOR THE SAMPLE

Learn Python daily

0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

Import the required standard-library tools and prepare the sample data for replace repeated spaces with regex.
Apply re.sub() and Whitespace to compute the required result.
Display the result for replace repeated spaces with regex and compare it with the documented sample output.

This example of replace repeated spaces with regex computes the result directly from the prepared sample data. It demonstrates re.sub() and Whitespace and prints a deterministic result that can be checked against the sample output.

EFFICIENCY

Time and space complexity

Time complexity

O(n)

Auxiliary space

O(n)

DEBUGGING CHECKLIST

Common mistakes

Check this

For replace repeated spaces with regex, keep the data shape and value types consistent with re.sub().

Check this

Apply re.sub() in the same order shown by the algorithm; changing the order can change the result.

Check this

Verify the final re.sub() and Whitespace result against the sample before trying new data.

Try it yourself

Practice: Run the program with the sample input, predict its output, and then test one boundary case of your own.