Use the debugger: `python -mpdb` is a very similar experience to `perl -d`, so much so that it feels like a gift from an earlier perl-to-python emigrant. (I sh

Use the debugger: `python -mpdb` is a very similar experience to `perl -d`, so much so that it feels like a gift from an earlier perl-to-python emigrant. (I showed my co-workers `perl -d`, they later discovered and showed me `python -mpdb`)