Using the Flask debugger
Flask as a lightweight Python web framework is widely used for building web applications. One of the out-of-the-box benefits of using Flask is its built-in debugger, which provides a powerful tool for identifying and fixing errors in your application.
When an error occurs in your Flask application, the debugger will automatically be activated. The debugger will provide detailed information about the error, including a stack trace, source code context, and any variables that were in scope at the time the error occurred. This information is golden for determining the root cause of the error and possible ideas for fixing it.
The Flask debugger also provides some interactive tools that can be used to inspect the state of your application and understand what is happening. For instance, you can evaluate expressions and examine the values of variables. You can also set breakpoints in your code, and step through your code line by line to see how it is executed...