run python in debug mode command line
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certainly! running python in debug mode allows you to inspect and troubleshoot your code more effectively. in debug mode, you can set breakpoints, step through code line by line, inspect variables, and analyze the program's execution flow. here's a step-by-step tutorial on how to run python in debug mode using the command line with examples:
while it's possible to debug python code using only the command line, using a code editor with built-in debugger support can enhance your debugging experience. popular choices include visual studio code, pycharm, and atom.
before running your code in debug mode, you need to add breakpoints or debug statements to identify areas you want to inspect. for this tutorial, let's create a simple python script (debug_example.py) with a function that needs debugging:
open a terminal and navigate to the directory containing your python script (debug_example.py).
run the script in debug mode using the -m pdb option:
your script will start running, and the debugger prompt ((pdb)) will appear.
in your python script, add the breakpoint() function at the point where you want to start debugging. replace the existing divide function with:
now run your script without any additional options:
the script will pause at the breakpoint() line, and the debugger prompt will appear.
once in debug mode, you can use various commands to inspect and control the execution flow. some commonly used commands include:
for example, after hitting the breakpoint() line, you can use the n command to execute the next line, and the p variable_name command to print the value of a variable.
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