python search for email address code example

Example 1: email regex

(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])

Example 2: python - regexp to find part of an email address

# Visit: https://regexr.com/
# and look at the Menu/Cheatsheet
import re

# Extract part of an email address
email = '[email protected]'

# Option 1
expr = '[a-z]+'
match = re.findall(expr, email)
name = match[0]
domain = f'{match[1]}.{match[2]}'

# Option 2
parts = email.split('@')

Example 3: find email address pytho

import re
line = "should we use regex more often? let me know at  [email protected]"
match = re.search(r'[\w\.-]+@[\w\.-]+', line)
match.group(0)
'[email protected]'