how to debug python code line by line

debugging is an essential skill for any programmer. when you encounter issues in your python code, one effective way to identify and fix problems is by debugging line by line. in this tutorial, we'll explore the basic steps and tools for debugging python code, using examples to illustrate each concept.
python comes with a built-in debugger module called pdb (python debugger). to start debugging line by line, import the pdb module at the beginning of your script.
a breakpoint is a point in your code where the debugger will pause execution, allowing you to inspect variables, evaluate expressions, and step through the code. to set a breakpoint, insert the following line where you want the program to stop:
execute your script as you normally would. when the execution reaches the breakpoint, the debugger will be activated, and you'll enter interactive mode.
once in interactive mode, you have access to various commands to navigate through the code:
while debugging, you can inspect the values of variables using the p command:
once you've identified and fixed the issues, type q to quit the debugger and allow the script to continue executing.
debugging line by line with pdb is a powerful technique for identifying and resolving issues in your python code. by setting breakpoints and using debugger commands, you can gain valuable insights into the program's behavior and pinpoint the root cause of problems.
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