Exception Handling in Python
Himachal Pradesh Board · Class 12 · Computer Science
Summary of Exception Handling in Python for Himachal Pradesh Board Class 12 Computer Science. Key concepts, important points, and chapter overview.
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Exception handling manages errors that occur during program execution so that a program does not terminate abruptly. Syntax errors are detected before execution begins, while exceptions arise during execution of a syntactically correct program. Python provides built-in exceptions for common errors a
Key Concepts
A SyntaxError is raised when there
A SyntaxError is raised when there is an error in the syntax of Python code. It is also known as a parsing error. The interpreter does not execute the
An exception is a Python object
An exception is a Python object that represents an error. It is raised when an error occurs during program execution.
Python’s standard library provides many built
Python’s standard library provides many built-in exceptions such as ValueError, IOError, KeyboardInterrupt, ImportError, EOFError, ZeroDivisionError,
The raise statement is used
The raise statement is used to forcefully throw a built-in or user-defined exception. Its syntax is raise exception-name[(optional argument)]. The opt
The assert statement tests an expression
The assert statement tests an expression. If the expression is false, an AssertionError is raised. Its syntax is assert Expression[,arguments]. It is
Learning Objectives
- Understand the difference between syntax errors and exceptions
- Identify common built-in exceptions in Python
- Explain how exceptions are raised and thrown
- Use the raise statement and the assert statement
- Describe the role of try, except, else, and finally blocks
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