Requirements
Helper functions in a Python module
Create your own module with functions to return thefollowing:
- Verification that a filename exists.
- Verification that a string is an email.
An email will have the character @ in string. @ cannot be the firstor last character. - Which company issued a credit card.
American Express – 15 digits starting with 3
Diners Club – 14 digits starting with 3
Discover – 16 digits starting with 6
Mastercard – 16 digits starting with 5
Visa – 16 digits starting with 4 - A temperature in Kelvin when given a temperature inFahrenheit.
- The value of money in dollars when given an exchange rate for aforeign currency and an amount
OROR