So your script/program/code is not working and nobody is around to help you! The pdb debugger can assist you.

• First identify what line number is having the issue (or approximate area)
• Run the pdb debugger with the command: pdb script_name args
• Verify that pdb is where you want to be with the line number or code area
• If you are in the area you wish to be, you can just [c]ontinue to make your way through the code

Here are some common commands you can use in pdb:

• (b)reak - set break points
• (cl)ear num - delete break point
• (cl)ear - delete all break points
• [c]ontinue - continue execution
• disable - disable break points
• (h)elp - help
• (h)elp command - to get command help
• (l)ist - show code around current line
• (n)ext - next line
• restart re-read script and restart debugging
• (s)tep - step into scope
• note: after you do a command (i.e. (n)ext), hitting enter will repeat the command again

Here is a nice quick introduction to the pdb tool:

• https://www.youtube.com/watch?v=bZZTeKPRSLQ

For those that learn better reading, here is a good website with a text description:

• https://www.digitalocean.com/community/tutorials/how-to-use-the-python-debugger

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