Debugging¶
Pdb basics¶
s - single step
n - next instruction
<enter> - repeat previous command
c (<line>) - continue (to line)
p $var - print
b - set breakpoint
b <condition e.g. $var eq “foo”> - conditional breakpoint
L - list all breakpoints
B <line|*> - delete breakpoint
Run pdb in emacs¶
esc+x perldb
Enable debugger at runtime¶
cpan Enbugger
require Enbugger;
Enbugger->stop;
REPL on fatal errors¶
cpan Carp::REPL