Write a python program. Write a function called validate() that takes a string as input, validates that it is a single letter, and returns the letter in lowercase. Example: validate(“A”) returns a validate(“abc”) returns invalid

Write a python program. Write a function called validate() that takes a string as input, validates that it is a single letter, and returns the letter in lowercase. Example: validate(“A”) returns a validate(“abc”) returns invalid

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 python program. Write a function called validate() that takes a string as input, validates that it is a single letter, and returns the letter in lowercase.

Example:

validate(“A”) returns a

validate(“abc”) returns invalid

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