Answered: write a simple python script for an…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

write a simple python script for an email checker

please provide an explanation of how it functions

I've attached the example I'm trying to achieve

Write a program that asks user to enter email address. Program then checks and prints whether email entered by the user is valid. Structure your program to have two functions:

isEmailValid function that takes a string as parameter and returns True or False depending on whether the input string matches all the requirements of a valid email listed
main function that repeatedly
1. prompts the user for the email address,
2. calls isEmailValid method passing the user entered string, saves the returned value
3. reports whether the email is valid or not depending on the returned value.
4. asks user if he/she wants to continue. If so, repeats above steps. Otherwise ends the program.
Use the recommended strategy of calling the main function use "if __name__ ..." format.

Email should be of the form first.last@bellevuecollege.edu. It should have

- a '.'
- a '@'
- should end with "bellevuecollege.edu"
- index of first '.' should be less than the index of '@'
- there should be only one '.' before '@'
- it should contain non-empty first and last names

Hints:

Use find / in / endswith methods
Remember that isEmailValid method returns a boolean value of True or False.
If any one of the requirements is not met, it should return False. And should return True only if all the requirements are met.
Clearly you will need to have many if conditions. Sequence them correctly.

*Python 3.6.3 Shell*
File Edit Shell Debug Options Window Help
>>>
====== RESTART: C:/code/Python/Playground/strings/email.py
==
Enter the email address: t.h@bellevuecollege.edu
Valid email
Want to continue (y/n) ? y
Enter the email address: t.h
Invalid email
Want to continue (y/n) ? y
Enter the email address: tebellevuecollege.edu
Invalid email
Want to continue (y/n) ? y
Enter the email address: t.h@belle.edu
Invalid email
Ln: 75 Col: 4

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