Exception Handling in Python
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Questions and Answers

What happens when an appropriate exception is not found in the call stack?

  • The code in the try block is executed again.
  • The program execution stops. (correct)
  • The program continues execution without interruption.
  • A default exception handler is used.

    • What does Bjarne Stroustrup emphasize for writing clean code?

  • Complete error handling (correct)
  • Managing dependencies
  • Optimizing performance excessively
  • Writing complex logic

    • A try block can exist without an except block.

    False

    Syntax errors occur when the programming rules are not followed.

    <p>True</p> Signup and view all the answers

    What is the purpose of the except block in exception handling?

    <p>To handle specific exceptions that arise from the code in the try block.</p> Signup and view all the answers

    When an exception occurs in the try block, the control is transferred to the ______.

    <p>except block</p> Signup and view all the answers

    What are the three types of errors mentioned in relation to Python programs?

    <p>Syntax errors, runtime errors, logical errors</p> Signup and view all the answers

    In Python, errors that get triggered automatically are called _______.

    <p>exceptions</p> Signup and view all the answers

    Match the following components of exception handling with their roles:

    <p>try block = Contains code suspected of causing exceptions except block = Handles the exceptions that occur call stack = A structure that maintains the execution history exception = An event that disrupts normal program flow</p> Signup and view all the answers

    Match the error type with its description:

    <p>Syntax Errors = Detected when rules of the programming language are violated Runtime Errors = Occur during program execution Logical Errors = Causes incorrect output despite no exceptions Exceptions = Errors triggered automatically during execution</p> Signup and view all the answers

    What is the purpose of exception handling in Python?

    <p>To manage and respond to errors gracefully</p> Signup and view all the answers

    Logical errors are the same as syntax errors.

    <p>False</p> Signup and view all the answers

    What happens if a Python program generates unexpected output?

    <p>An exception may be raised.</p> Signup and view all the answers

    What happens after an exception is raised in a program?

    <p>No further statements in the current block are executed.</p> Signup and view all the answers

    The raise statement can only be used to raise built-in exceptions.

    <p>False</p> Signup and view all the answers

    What is typically included as an argument when raising an exception?

    <p>A string message</p> Signup and view all the answers

    The raise statement interrupts the normal flow of execution and jumps to the _____ code.

    <p>exception handler</p> Signup and view all the answers

    Match the following exception-related terms with their definitions:

    <p>raise = Statement used to throw an exception IndexError = A built-in exception for index-related issues assert = Statement used to ensure a condition is true exception handler = Code that responds when an exception is raised</p> Signup and view all the answers

    An example of a built-in exception is:

    <p>ValueError</p> Signup and view all the answers

    When raising an exception, the associated messages are mandatory.

    <p>False</p> Signup and view all the answers

    What type of exception is raised when there is an error in the syntax of the Python code?

    <p>SyntaxError</p> Signup and view all the answers

    What will happen to the statement following a raise statement if an exception is raised?

    <p>It will not be executed.</p> Signup and view all the answers

    All exceptions in Python are generated when a program is syntactically correct.

    <p>False</p> Signup and view all the answers

    What are built-in exceptions?

    <p>Exceptions defined in the compiler/interpreter that handle commonly occurring errors.</p> Signup and view all the answers

    A ______ is raised when a built-in method receives an argument of the correct data type but with inappropriate values.

    <p>ValueError</p> Signup and view all the answers

    Which of the following is NOT a built-in exception in Python?

    <p>LogicError</p> Signup and view all the answers

    The appropriate exception handler code displays the reason along with the raised exception name.

    <p>True</p> Signup and view all the answers

    What does IOError indicate in Python?

    <p>It is raised when the specified file cannot be opened.</p> Signup and view all the answers

    Match the following exceptions with their explanations:

    <p>SyntaxError = Raised due to syntax error in the code ValueError = Raised when argument values are inappropriate IOError = Raised when a file cannot be opened TypeError = Raised when operations or functions are applied to an object of inappropriate type</p> Signup and view all the answers

    The Python interpreter does not keep track of the position where an error occurs.

    <p>False</p> Signup and view all the answers

    What is created by the Python interpreter when an error occurs?

    <p>exception object</p> Signup and view all the answers

    In Python, exceptions are categorized into distinct types so that specific exception handlers can be created for each type. This helps separate the main logic of the program from ____.

    <p>error detection and correction code</p> Signup and view all the answers

    Which of the following statements about the code blocks in exception handling is accurate?

    <p>Main logic and exception handling are separated into different blocks.</p> Signup and view all the answers

    Both user-defined and built-in exceptions can be handled in Python.

    <p>True</p> Signup and view all the answers

    What type of information does the exception object contain?

    <p>Type of error, file name, position in the program</p> Signup and view all the answers

    Match the following terms with their descriptions:

    <p>Exception Handler = Code that handles specific exceptions Exception Object = Contains error information Error Detection = Process of identifying errors in code User-defined Exception = Custom exceptions created by the user</p> Signup and view all the answers

    The segment of code where there is a possibility of error or exception is placed inside a ____.

    <p>block</p> Signup and view all the answers

    The try block will always execute even if an exception occurs in its statements.

    <p>False</p> Signup and view all the answers

    What is the purpose of the 'except' clause in a try...except block?

    <p>To handle exceptions that occur in the try block.</p> Signup and view all the answers

    Match the following components with their roles in a try...except block:

    <p>try = Code that may throw exceptions except = Code that handles exceptions ZeroDivisionError = Specific exception for division by zero input = Function to get user input</p> Signup and view all the answers

    Which of the following is a correct statement about the try...except structure?

    <p>Multiple except clauses can be defined to handle different exceptions.</p> Signup and view all the answers

    The statement 'OUTSIDE try..except block' is printed whether an exception occurs or not.

    <p>True</p> Signup and view all the answers

    Signup and view all the answers

    Study Notes

    Exception Handling in Python

    • Python uses exception handling to gracefully manage errors during program execution
    • Errors that disrupt normal flow are called exceptions
    • Exceptions can be syntax errors (e.g., typos), runtime errors (e.g., division by zero), or logical errors (e.g., incorrect logic)
    • The try...except block is the fundamental structure for handling exceptions
    • The try block contains code that might raise an exception
    • The except block contains code to handle specific exceptions
    • Multiple except blocks can handle different exceptions
    • An optional else block is executed if no exception occurred in the try block
    • An optional finally block ensures that code executes regardless of exceptions (e.g., closing files)
    • The raise statement is used to explicitly raise an exception
    • Custom exceptions can be created using the Exception class

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    Related Documents

    Python Exception Handling PDF

    Description

    This quiz covers the fundamentals of exception handling in Python, focusing on how to manage errors effectively during program execution. You'll learn about the try...except block, the role of else and finally blocks, and how to create custom exceptions.

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