The first thing we'll do is simply see what commands are available in the debugger by typing help:

(Pdb) help

Documented commands (type help <topic>):
========================================
EOF    cl         disable  interact  next     return  u          where
a      clear      display  j         p        retval  unalias
alias  commands   down     jump      pp       run     undisplay
args   condition  enable   l         print    rv      unt
b      cont       exit     list      q        s       until
break  continue   h        ll        quit     source  up
bt     d          help     longlist  r        step    w
c      debug      ignore   n         restart  tbreak  whatis

Miscellaneous help topics:
==========================
pdb  exec

This lists a few dozen commands, some of which you'll use in almost every debugging session, and some of which you may never use at all.

You can get specific help on a command by typing help followed by the command name. For example, to see what continue does, type help continue:

(Pdb) help continue
c(ont(inue))
Continue execution, only stop when a breakpoint is encountered.

The curious parentheses in the command name tell you that continue can
be activated by typing c, cont, or the full word continue. Knowing the shortcuts for common PDB commands can greatly increase your comfort and speed at debugging.