Remove Extra White Spaces from a String in Python
🧹 Remove Extra White Spaces from a String in Python | Using re.sub()
In this video, you'll learn how to remove extra white spaces from a sentence using Python's re module (re.sub() and re.compile). This is a powerful technique for cleaning up messy text, commonly used in data preprocessing and real-world automation tasks.
📌 What you'll learn:
✅ How to match one or more whitespace characters using \s+
✅ How to normalize spaces between words
✅ How to remove all spaces from a string
✅ How to strip leading and trailing spaces
🧠 Perfect for Python beginners, data cleaners, and interview practice.
🛠️ Code used in the video:
import re
Input strings
str1 = " This is a sentence with white spaces. "
str2 = " P Y T H O N "
Compile pattern for one or more spaces
space = re.compile(r'\s+')
Normalize internal spaces and strip ends
result = space.sub(' ', str1).strip()
print(result) # Output: "This is a sentence with white spaces."
Remove all spaces
result2 = space.sub('', str2).strip()
print(result2) # Output: "PYTHON"
💡 Tip: re.sub(r'\s+', ' ', text) replaces multiple spaces with a single space. Use strip() to remove leading and trailing spaces.
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