> which means suddenly relative imports works Not just relative imports but also (properly formed) absolute imports. For example, if you have a directory my_pk

> which means suddenly relative imports works Not just relative imports but also (properly formed) absolute imports. For example, if you have a directory my_pkg/ with files mod1.py and mod2.py, then # In my_pkg/mod2.py import my_pkg.mod1 will work if you run `python -m my_pkg.mod2` but will fail if you run `python my_pkg/mod2.py` However, the script syntax does work properly with absolute paths if if you set the enviornment variable `PYTHONPATH=.` (I don't know about relative paths - I don't use those). That would presumably allow pdb to work (but, shame on me, I've never tried it).