How to debug in Python

In Python, there are various ways to debug code.

1. By using the print statement, you can insert it in the code to output the values of variables and see where the program is executing. This method is suitable for simple debugging needs, but for complex programs, inserting numerous print statements can make the code messy.
2. To use the pdb module: pdb is a built-in debugging tool in Python that allows you to insert breakpoints in your code and provides a series of commands for debugging. You can import the pdb module using import pdb, then insert pdb.set_trace() at the desired location to set the breakpoint. When the program reaches this breakpoint, it will pause and wait for user input.
3. Most integrated development environments (IDEs) come equipped with debugging tools that allow users to set breakpoints, inspect variable values, and step through code execution. Popular Python IDEs like PyCharm and VSCode offer powerful debugging capabilities.
4. Utilizing third-party libraries: There are also some third-party libraries that can be used for debugging, such as ipdb and pudb, which offer more powerful and convenient debugging functions, such as automatically printing variable values and examining the code execution process.

In conclusion, choose a suitable debugging method based on your own needs and habits.