search email in file with regex code example

Example 1: 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 2: 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]'