Starting python debugger automatically on error
Download this blogpost from https://codegive.com
debugging is an essential part of software development. python provides a built-in debugger called pdb (python debugger) to help you find and fix issues in your code. manually adding pdb breakpoints can be time-consuming, especially when you encounter unexpected errors. in this tutorial, you will learn how to configure python to start the debugger automatically whenever an error occurs, making the debugging process more efficient.
to follow this tutorial, you should have python installed on your computer. you can download the latest version of python from the official website (https://www.python.org/downloads/).
before we can use the pdb debugger, we need to import it into our script. create a python script (e.g., auto_debug.py) and import the pdb module at the beginning of your script:
to enable automatic debugging on error, we can use the pdb.post_mortem() function from the pdb module. this function will start the debugger whenever an unhandled exception occurs in your script.
add the following line at the end of your script:
here's what your script might look like after importing pdb and enabling automatic debugging:
now that you have added the necessary code to enable automatic debugging, you can run your python script. open your terminal or command prompt and navigate to the directory where your script is located. then, run your script:
to test the automatic debugging feature, intentionally introduce an error into your code. for example, you can create a division by zero error:
when an error occurs, python will automatically start the debugger and provide you with an interactive prompt to inspect the variables, execute code, and step through your program.
here are some useful pdb commands to help you navigate and debug your code:
use these commands to explore your code, find the cause of the error, and fix it.
once you've finished debugging and resolved the issues in your code, make sure to remove the pdb.post_mortem() line from your script to prevent the debug ...