Write a Python program that asks a user to input expressions (e.g., 5+6) and saves Problem 2 them into a file "data.txt". Data input phase finishes when a user enter 'done'. Then reads the expressions from the file one by one, executes them and prints the expression along with its result (e.g., 7*2-14). (Make sure to check for possible input errors in your code, use try except construct)

Write a Python program that asks a user to input expressions (e.g., 5+6) and saves Problem 2 them into a file "data.txt". Data input phase finishes when a user enter 'done'. Then reads the expressions from the file one by one, executes them and prints the expression along with its result (e.g., 7*2-14). (Make sure to check for possible input errors in your code, use try except construct)

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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