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Understanding Regular Expressions with `re` in Python

Tutorial October 24, 2024
python

import re

# Pattern to match only positive numbers (integers and floats)
pattern = r"\+?\d+(\.\d+)?"

# Example text containing positive numbers
text = "Prices increased by +5.75 and 12.99."

matches = re.findall(pattern, text)
print(matches)  # Output: ['+5.75', '12.99']
  • By using r"\+?\d+(\.\d+)?", the pattern only matches positive numbers, both with and without a leading +.

Python Regular Expressions (Regex) Cheatsheet

Cheatsheet August 03, 2024
python

This cheat sheet provides a quick reference to the most common regex patterns and functions in Python. For more complex regex patterns and usage, consider exploring the Python re module documentation.