Interactive Python Debugger

The ipdb program is an interactive debugger that allows you to execute a program in slow motion.

Install it with:

pip install ipdb

Then you can start your program in debugging mode from the terminal:

python -m ipdb dungeon_explorer.py

In ipdb you have a couple of keyboard shortcuts that allow you to navigate the programs execution:

command	description
n	execute the next line
s	execute the next line. If it contains a function, step inside it
b 57	set a breakpoint at line 57
c	continue execution until the next breakpoint
ll	list lots of lines around the current one
myvar	print contents of the variable myvar
myvar = 1	modify a variable