How do I check if a value is a valid email address in Python using the email-validator library and regex?
Benjamin C

To check if a value is a valid email address in Python using theemail-validator library and regex, you can follow these steps: 1. Install theemail-validator library:

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   pip install email-validator

2. Import the necessary modules:

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   import re
   from email_validator import validate_email, EmailNotValidError

3. Define a function to check if the value is a valid email address:

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   def is_valid_email(email):
  try:
 # Use email_validator library to validate email format
 validate_email(email)
 # Use regex to perform additional checks
 if re.match(r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$', email):
return True
 else:
return False
  except EmailNotValidError:
 return False

4. Call theis_valid_email function and pass the value to be checked:

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   email = 'example@example.com'
   if is_valid_email(email):
  print('Valid email address')
   else:
  print('Invalid email address')

The functionis_valid_email first uses thevalidate_email function from theemail-validator library to check the basic email format. If the format is valid, it then uses a regular expression pattern to perform additional checks. The regular expression pattern^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$ checks for the following conditions: - The local part of the email (before the @ symbol) can contain alphanumeric characters, dots, underscores, percent signs, plus signs, and hyphens. - The domain part of the email (after the @ symbol) can contain alphanumeric characters, dots, and hyphens. - The top-level domain must consist of at least two characters. If both thevalidate_email function and the regular expression match, the email address is considered valid. Note that theEmailNotValidError exception is caught to handle any exceptions raised by thevalidate_email function. If an exception occurs, it means the email format is invalid, and the function returnsFalse. You can modify the code to suit your specific needs and use it to check the validity of email addresses in your Python programs.

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