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Write a python program that reads from a text file whose name is provided by the user, a list of a coffee shop products ordered by a customer (a sample input file is shown below). Each line contains item name, quantity and price (in biza) per product. Compute and display the total payment amount (in riyals) for each product as well as the total bill. Your program should consider the following erroneous cases: • The file does not open/exist The format of the data in the file is incorrect (e.g. quantity = "!" or price "8&0"), in which case RuntimeError exception should be raised and the processing stops. Note: Make sure you close any open file even if an error occurs. Enter filename: order1.txt Product Qty Payment Expresso:2 1200 Turkish coffee:3 1250 Shish tawook:2 8&0 Expresso 2 2.40 Coca cola:! 1300 Turkish coffee 3 3.75 Water 1/2L: 100 File contents invalid. invalid literal for int() with base 10: '8&0' Total: 6.15 Sample input file Sample output

Write a python program that reads from a text file whose name is provided by the user, a list of a coffee shop products ordered by a customer (a sample input file is shown below). Each line contains item name, quantity and price (in biza) per product. Compute and display the total payment amount (in riyals) for each product as well as the total bill. Your program should consider the following erroneous cases: • The file does not open/exist The format of the data in the file is incorrect (e.g. quantity = "!" or price "8&0"), in which case RuntimeError exception should be raised and the processing stops. Note: Make sure you close any open file even if an error occurs. Enter filename: order1.txt Product Qty Payment Expresso:2 1200 Turkish coffee:3 1250 Shish tawook:2 8&0 Expresso 2 2.40 Coca cola:! 1300 Turkish coffee 3 3.75 Water 1/2L: 100 File contents invalid. invalid literal for int() with base 10: '8&0' Total: 6.15 Sample input file Sample output

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Design a python program with comments
Exercise 4: Write a python program that reads from a text file whose name is provided by the user, a list of a coffee shop products ordered by a customer (a sample input file is shown below). Each line contains item name, quantity and price (in biza) per product. Compute and display the total payment amount (in riyals) for each product as well as the total bill. Your program should consider the following erroneous cases: • The file does not open/exist • The format of the data in the file is incorrect (e.g. quantity = "!" or price "8&0"), in which case RuntimeError exception should be raised and the processing stops. Note: Make sure you close any open file even if an error occurs. Enter filename: order1.txt Product Qty Payment Expresso:2 1200 Turkish coffee:3 1250 Shish tawook:2 8&0 Expresso 2 2.40 Coca cola:! 1300 Turkish coffee 3 3.75 Water 1/2L: 100 File contents invalid. invalid literal for int() with base 10: '8&0' Total: 6.15 Sample input file Sample output
Transcribed Image Text:Exercise 4: Write a python program that reads from a text file whose name is provided by the user, a list of a coffee shop products ordered by a customer (a sample input file is shown below). Each line contains item name, quantity and price (in biza) per product. Compute and display the total payment amount (in riyals) for each product as well as the total bill. Your program should consider the following erroneous cases: • The file does not open/exist • The format of the data in the file is incorrect (e.g. quantity = "!" or price "8&0"), in which case RuntimeError exception should be raised and the processing stops. Note: Make sure you close any open file even if an error occurs. Enter filename: order1.txt Product Qty Payment Expresso:2 1200 Turkish coffee:3 1250 Shish tawook:2 8&0 Expresso 2 2.40 Coca cola:! 1300 Turkish coffee 3 3.75 Water 1/2L: 100 File contents invalid. invalid literal for int() with base 10: '8&0' Total: 6.15 Sample input file Sample output
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