4. Recall that a valid name in Python can have letters, digits, and underscore characters and cannot start with a digit. Write a function isValidName(s) that returns True if s represents a valid name in Python; otherwise your function should return False. Test your function on the following strings: Valid Invalid "bDay' '1a' 'AO' #A' 'a1' '1_a' ' 1amt' "[a] 'ABC' 'A# 'A-2'

4. Recall that a valid name in Python can have letters, digits, and underscore characters and cannot start with a digit. Write a function isValidName(s) that returns True if s represents a valid name in Python; otherwise your function should return False. Test your function on the following strings: Valid Invalid "bDay' '1a' 'AO' #A' 'a1' '1_a' ' 1amt' "[a] 'ABC' 'A# 'A-2'

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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