Starting Out with Python (4th Edition)
4th Edition
ISBN: 9780134444321
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 6.4, Problem 20CP
Program Plan Intro
Exception:
- • An exception is an error which occurs during a program execution.
- • The program execution stops abruptly when an exception occurs in the program.
- • To handle exceptions in the python programs, the “try/except” statements are used.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
To throw an exception, what form of statement is
used?
If you do not handle an exception, it is ignored by the Python interpreter, and the program continues to execute.True or False
In the event of an exception being thrown, how can the default error message be displayed?
Chapter 6 Solutions
Starting Out with Python (4th Edition)
Ch. 6.1 - What is an output file?Ch. 6.1 - What is an input file?Ch. 6.1 - What three steps must be taken by a program when...Ch. 6.1 - Prob. 4CPCh. 6.1 - Prob. 5CPCh. 6.1 - When writing a program that performs an operation...Ch. 6.1 - If a file already exists, what happens to it if...Ch. 6.1 - What is the purpose of opening a file?Ch. 6.1 - What is the purpose of closing a file?Ch. 6.1 - Prob. 10CP
Ch. 6.1 - In what mode do you open a file if you want to...Ch. 6.2 - Write a short program that uses a for loop to...Ch. 6.2 - Prob. 13CPCh. 6.2 - Assume the file data.txt exists and contains...Ch. 6.2 - Prob. 15CPCh. 6.3 - Prob. 16CPCh. 6.3 - Prob. 17CPCh. 6.3 - Prob. 18CPCh. 6.4 - Prob. 19CPCh. 6.4 - Prob. 20CPCh. 6.4 - What type of exception does a program raise when...Ch. 6.4 - Prob. 22CPCh. 6 - A file that data is written to is known as...Ch. 6 - A file that data is written to is known as...Ch. 6 - Before a file can be used by a program, it must be...Ch. 6 - When a program is finished using a file, it should...Ch. 6 - The contents of this type of file can be viewed in...Ch. 6 - This type of file contains data that has not been...Ch. 6 - When working with this type of file, you access...Ch. 6 - When working with this type of file, you can jump...Ch. 6 - This is a small holding section" in memory that...Ch. 6 - This marks the location of the next item that will...Ch. 6 - When a file is opened in this mode, data will be...Ch. 6 - This is a single piece of data within a record. a....Ch. 6 - Prob. 13MCCh. 6 - Prob. 14MCCh. 6 - Prob. 15MCCh. 6 - When working with a sequential access file, you...Ch. 6 - When you open a file that file already exists on...Ch. 6 - The process of opening a file is only necessary...Ch. 6 - Prob. 4TFCh. 6 - When a file that already exists is opened in...Ch. 6 - Prob. 6TFCh. 6 - You can have more than one except clause in a...Ch. 6 - Prob. 8TFCh. 6 - Prob. 9TFCh. 6 - Describe the three steps that must be taken when a...Ch. 6 - Why should a program close a file when it's...Ch. 6 - What is a read position? where is the read...Ch. 6 - If an existing file is opened in append mode, What...Ch. 6 - If a file does not exist and a program attempts to...Ch. 6 - Write a program that opens an output file with the...Ch. 6 - Write a program that opens the my_name.txt file...Ch. 6 - Write code that does the following: opens an...Ch. 6 - Prob. 4AWCh. 6 - Modify the code that you wrote in problem 4 so it...Ch. 6 - Write code that opens an output file with the...Ch. 6 - A file exists on the disk named students. txt. The...Ch. 6 - A file exists on the disk named students txt. The...Ch. 6 - Prob. 9AWCh. 6 - Prob. 10AWCh. 6 - File Display Assume a file containing a series of...Ch. 6 - File Head Display Write a program that asks the...Ch. 6 - Line Numbers Write a program that asks the user...Ch. 6 - Item Counter Assume a file containing a series of...Ch. 6 - Sum of Numbers Assume a file containing a series...Ch. 6 - Average of Numbers Assume a file containing a...Ch. 6 - Random Number File Writer Write a program that...Ch. 6 - Random Number File Reader This exercise assumes...Ch. 6 - Prob. 9PECh. 6 - Golf Scores The Springfork Amateur Golf Club has a...Ch. 6 - Personal Web Page Generator Write a program that...Ch. 6 - Average Steps Taken A Personal Fitness Tracker is...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- If a checked exception is not checked, the program will run fine as long as the exception is not triggered. True Falsearrow_forwardExceptions are caught and handled by usingarrow_forwarduse C++ programing language Write a program that prompts the user to enter a person's date of birth in numeric form such as 8-27-1980. The program then outputs the date of birth in the form: August 27, 1980. Your program must contain at least two exception classes: invalidDay and invalidMonth. If the user enters an invalid value for day, then the program should throw and catch an invalidDay object. Similar conventions for the invalid values of month and year. (Note that your program must handle a leap year.)arrow_forward
- How do you get out of break mode when an exception is thrown?arrow_forwardc++ programming Lab 10-1: Write a test program to accept two numbers from consol. Then check to see if first number is larger than second number . If it is throwing an exception and handle the error properly. Lab 10-2: Write a test program to accept a number from consol. then check to see if the number is positive or negative. If it is negative throw an exception and indicate the number is negative otherwise take the squire root of the number. Use exception handling to control the flow of the code. Lab 10-3: Write a test program to accept a number from consol. This number is radius of circle if the number is positive find area and circumference. Otherwise, throw an exception with proper message. Lab 10-4: Show the output of the following code with input 10, 60, and 120, respectively.arrow_forwardWhat happens if an exception is not handled in a program?arrow_forward
- C++ You did this way back in Unit 1! But now all of your RomanNumber code is wrapped up in a class, so the "main" program is short and sweet. As before, write a program that accepts entries from the user. If it's an integer, convert to Roman Number and display. If it's a Roman Number, convert to integer and display. If it's neither, thrown an exception and continue to process The action to take here will be to display an error message If the entry is 0 or O (The digit 0 (zero) or the letter O) exit and state how many conversions were done of each type (integer to Roman and Roman to integer) and how many exceptions were thrown. As I said, the main program will be short and sweet. Provide your .cpp code and a screen shot of your program in action. Enter twelve conversions - four integer to Roman, four Roman to integer, and two of each in which the input is invalid so that I can see the exceptions. The thirteenth and final entry will be 0 or O.arrow_forwardJava Exceptions: Your parents gave you an emergency cash card that has 2 restrictions: it can't be used to purchase alcohol, and the purchase price must be less than $100. Write a program segment in main() that will read 2 inputs from the user describing a purchase you are trying to make using the cash card: the item purchased (eg runners) and the purchase price (eg 79.99). Your code must check for the 2 restrictions mentioned above and generate exceptions if either one of them occurs (InvalidItemException or InvalidPurchasePriceException. Assume that these have already been coded so you don't need to write them). Your code must also deal with each exception by writing out an appropriate (specific) message stating what the problem is. If there is no problem your code should generate a "Payment accepted" message.arrow_forwardWhen an exception occurs in a program, the code can deal with it in one of three ways: ignore it handle it where it occurs handle it an another place in the program If the code handles it where it occurs, what java construct is used? while loop try/catch another construct (not listed here) if statementarrow_forward
- Python Code: Write a function that takes a single number as an argument: 1) This function should then check whether a number is an even number (2,4,6,8) and raise an exception if otherwise 2) Call this function with an uneven number first without catching the exception and then with catching the exception and printing a warning to the user afterwards Bonus: Do the same as the above but instead implement your solution for prime numbers and call the function with a non-prime numberarrow_forwardHow can an exception pass information to the exception handler?arrow_forwardChecked exceptions in Java are those exceptions that are checked at compile time and must be either caught or declared in the method's throws clause. (True/False)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT