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Warning!

Puhti and Mahti will be decommissioned after Roihu becomes available. Users should clean up unnecessary files and move any required data by the end of August 2026. See the Roihu data preparation instructions for details.

Puhti scratch is very full: keep only active data there and move or delete everything else. No new Puhti scratch quota will be granted.

pdb: Python debugger

Available

  • Mahti: Any Python version
  • Puhti: Any Python version

License

Usage is possible for both academic and commercial purposes.

Usage

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.