Getting Started With pdb
Now that you know what
pdb is, it’s time to get started! You can break into the debugger with just a single line of Python code:
import pdb; pdb.set_trace()
When execution reaches this point, the program stops and you’re dropped into the
pdb debugger. If you’re using Python 3.7 or later, then you can also use
breakpoint() instead. You can automatically enable or disable all of your
breakpoint() calls by modifying environment variables.
pdb also supports post-mortem debugging, which will tell Python to drop you into a
pdb prompt as soon as an exception is reached. This is useful for when you don’t have write access to a Python script but still want to debug it. Just run your script like this:
$ python3 -m pdb my_script.py
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