Exercise 1: Write a python program that reads from a text file whose name is provided by the user and including lines relating to the dimensions of three kinds of shapes: Circle, Triangle, Trapezoid (see figure below for a sample input file). For each shape compute and display its area: - Triangle area = base X height. - Circle area = radius². - Trapezoid area = (base 1 + base,)X height. 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. shape name = 'Polygon'), the shape's dimensions are incorrect (e.g. negative value or number of values for a trapezoid not equal to 3: base,, base; and height, or), in which case RuntimeError exception should be raised and the processing should continue. Triangle: Circle: -10 Trapezoid: 1e 12 70 Trapezoid: 9 50 48 Shape Area Triangle Circle 1200.00 32 » invalid dimension Trapezoid Trapezoid 770.00 > missing data. Sample input file Sample output

Exercise 1: Write a python program that reads from a text file whose name is provided by the user and including lines relating to the dimensions of three kinds of shapes: Circle, Triangle, Trapezoid (see figure below for a sample input file). For each shape compute and display its area: - Triangle area = base X height. - Circle area = radius². - Trapezoid area = (base 1 + base,)X height. 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. shape name = 'Polygon'), the shape's dimensions are incorrect (e.g. negative value or number of values for a trapezoid not equal to 3: base,, base; and height, or), in which case RuntimeError exception should be raised and the processing should continue. Triangle: Circle: -10 Trapezoid: 1e 12 70 Trapezoid: 9 50 48 Shape Area Triangle Circle 1200.00 32 » invalid dimension Trapezoid Trapezoid 770.00 > missing data. Sample input file Sample output

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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In Python Write a program that reads movie data from a CSV (comma separated values) file and output the data in a formatted table. The program first reads the name of the CSV file from the user. The program then reads the CSV file and outputs the contents according to the following requirements: Each row contains the title, rating, and all showtimes of a unique movie. A space is placed before and after each vertical separator ('|') in each row. Column 1 displays the movie titles and is left justified with a minimum of 44 characters. If the movie title has more than 44 characters, output the first 44 characters only. Column 2 displays the movie ratings and is right justified with a minimum of 5 characters. Column 3 displays all the showtimes of the same movie, separated by a space. Each row of the CSV file contains the showtime, title, and rating of a movie. Assume data of the same movie are grouped in consecutive rows. Ex: If the input of the program is: movies.csv and the contents…
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