Python email validation code preview and bug testing

email validation is a common task in web development to ensure that the email addresses entered by users are in the correct format. python provides a built-in module called `re` for regular expressions, which can be used to validate email addresses.

here is a step-by-step tutorial on how to create an email validation code in python using regular expressions:

1. import the `re` module for regular expressions.
2. define a regular expression pattern to match the format of an email address.
4. return true if the email address is valid, and false otherwise.

here is the python code example demonstrating email validation:

to test the email validation code, you can provide different email addresses as input and check the output. make sure to test both valid and invalid email addresses to ensure the code functions correctly.

if you encounter any bugs or unexpected behavior, you can debug the code by printing intermediate results, checking the regular expression pattern, and verifying the input data.

this tutorial provides a simple and effective way to validate email addresses in python using regular expressions. feel free to customize the regular expression pattern to meet your specific requirements.

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