Category: Tutorials

Assertions in Python Assertions in Python are statements that assert or assume a condition to be true. If the condition turns out to be false, Python raises an AssertionError exception. They are used to detect programming errors that should never occur if the code is correct. The assert Statement In Python, assertions use the assert keyword followed…

Logging in Python Logging is the process of recording messages during the execution of a program to provide runtime information that can be useful for monitoring, debugging, and auditing. In Python, logging is achieved through the built-in logging module, which provides a flexible framework for generating log messages. Benefits of Logging Following are the benefits of using…

User-Defined Exceptions in Python User-defined exceptions in Python are custom error classes that you create to handle specific error conditions in your code. They are derived from the built-in Exception class or any of its sub classes. User-defined exceptions provide more precise control over error handling in your application − How to Create a User-Defined…

Nested try Block in Python In a Python program, if there is another try-except construct either inside either a try block or inside its except block, it is known as a nested-try block. This is needed when different blocks like outer and inner may cause different errors. To handle them, we need nested try blocks. We start with an example having…

Exception Chaining Exception chaining is a technique of handling exceptions by re-throwing a caught exception after wrapping it inside a new exception. The original exception is saved as a property (such as cause) of the new exception. During the handling of one exception ‘A’, it is possible that another exception ‘B’ may occur. It is…

Raising Exceptions in Python In Python, you can raise exceptions explicitly using the raise statement. Raising exceptions allows you to indicate that an error has occurred and to control the flow of your program by handling these exceptions appropriately. Raising an exception refers to explicitly trigger an error condition in your program. This can be useful for…

Python Try-Finally Block In Python, the try-finally block is used to ensure that certain code executes, regardless of whether an exception is raised or not. Unlike the try-except block, which handles exceptions, the try-finally block focuses on cleanup operations that must occur, ensuring resources are properly released and critical tasks are completed. Syntax The syntax…

Python Try-Except Block In Python, the try-except block is used to handle exceptions and errors gracefully, ensuring that your program can continue running even when something goes wrong. This tutorial will cover the basics of using the try-except block, its syntax, and best practices. Exception handling allows you to manage errors in your code by…

Exception Handling in Python Exception handling in Python refers to managing runtime errors that may occur during the execution of a program. In Python, exceptions are raised when errors or unexpected situations arise during program execution, such as division by zero, trying to access a file that does not exist, or attempting to perform an…

Python Syntax Errors In Python, syntax errors are among the most common errors encountered by programmers, especially those who are new to the language. This tutorial will help you understand what syntax errors are, how to identify them, and how to fix them. What is a Syntax Error? A syntax error in Python (or any…