Call validate

Lesson 6 of 8 in Coddy's Email validator using Python course.

We finished the validation function!

Now let's call it all from main function.

In Python, to create main function use,

if __name__ == "__main__":
	# write code here

And write the code inside the if clause.

Challenge

Easy

Create a main function, in the function ask for input from the user and use the validate function on the input, print the output of validate.

Try it yourself

PERMITS_RECIEPENT = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789._'
PERMITS_DOMAIN = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-'

def validate(email):
    if not email.count('@') == 1:
        return False

    recipient_name = email.split('@')[0]
    if len(recipient_name) > 24 or len(recipient_name) < 3:
        return False
    for c in recipient_name:
        if c not in PERMITS_RECIEPENT:
            return False
    if '.' == recipient_name[0] or '.' == recipient_name[-1] or '_' == recipient_name[0] or '_' == recipient_name[-1]:
        return False
    
    domain_name = email.split('@')[1].split('.')[0]
    if len(domain_name) > 12 or len(domain_name) < 3:
        return False
    for c in domain_name:
        if c not in PERMITS_DOMAIN:
            return False
    
    top_level_domain_name = email.split('@')[1].split('.')[1]
    if top_level_domain_name not in ['com', 'org', 'net', 'tech']:
        return False
    return True

All lessons in Email validator using Python

1Introduction

Introduction

2The Validator

@ symbol Recipient name

Domain name

Top-level domain

3The Program

Call validate Project lesson

Last additions

Final words