How to use regular expressions in Python

Question

I need to extract data from text using patterns. How do I use regex in Python?

youssef_net · Accepted Answer

Basic regex operations
import re

text = "Email: user@example.com, Phone: 123-456-7890"

# Find all matches
emails = re.findall(r'[\w.-]+@[\w.-]+', text)

# Search for pattern
match = re.search(r'\d{3}-\d{3}-\d{4}', text)
if match:
    phone = match.group()

# Replace
new_text = re.sub(r'\d+', 'XXX', text)
Compiled patterns
# Compile for reuse
email_pattern = re.compile(r'[\w.-]+@[\w.-]+')
matches = email_pattern.findall(text)

How to use regular expressions in Python

1 Answer

Basic regex operations

Compiled patterns

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