pdb: Python debugger

pdb is an in-built Python debugger that supports breakpoints, stepping through the source line by line, inspection of stack frames, source code listing, etc.

There are two ways to use the debugger. Within the code (or from the interpreter):

import pdb
pdb.run('functbd(list_parameters)')

Alternatively pdb can also be invoked as a script to profile another script:

python -m pdb myscript.py

Running pdb will open the prompt which supports various commands such as where, down, up, up, break, step, next, jump, list.

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