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2 days ago · The module pdb defines an interactive source code debugger for Python programs. It supports setting (conditional) breakpoints and single stepping at the source line level, inspection of stack frames, source code listing, and evaluation of arbitrary Python code in the context of any stack frame. It also supports post-mortem debugging and can be ...
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Nov 4, 2022 · From the Command Line: It is the easiest way of using a debugger. You just have to run the following command in terminal. python -m pdb exppdb.py (put your file name instead of exppdb.py) This statement loads your source code and stops execution on the first line of code. Example 3: Navigating in pdb prompt.
In this first example, we’ll look at using pdb in its simplest form: checking the value of a variable. Insert the following code at the location where you want to break into the debugger: Python. import pdb; pdb.set_trace() When the line above is executed, Python stops and waits for you to tell it what to do next.
- Printing Variables or expressions. When utilizing the print order p, you’re passing an articulation to be assessed by Python. On the off chance that you pass a variable name, pdb prints its present worth.
- Moving in code by steps. This is the most important feature provided by pdb. The two main commands are used for this which are given below: n -> step to next line within the same function.
- Using Breakpoints. This feature helps us to create breakpoints dynamically at a particular line in the source code. Here, in this example, we are creating breakpoint using command b which given below
- Execute code until the specified line. Use unt to proceed with execution like c, however, stop at the following line more noteworthy than the current line.
Sep 27, 2022 · How to Get Started with pdb. There are two ways to invoke pdb: 1. Call pdb externally. To call pdb when on a terminal you can call it while executing your .py file. python -m pdb <test-file-name>.py. If you use poetry and pytest you can call pdb using --pdb flag in the end.
Sep 12, 2024 · The module pdb defines an interactive source code debugger for Python programs. It supports setting (conditional) breakpoints and single stepping at the source line level, inspection of stack ...
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Jun 15, 2023 · Debugging in Python using breakpoint () and pdb module requires a set of commands that needs to be followed while debugging Python code. These commands are as follows: c: continue execution. q: quit the debugger/execution. n: step to next line within the same function. s: step to next line in this function or a called function.