🐍 debuglater is a Python library that saves stacktrace into a file when your app crashes with an exception. Not just a traceback, but the whole stack, including all variables. It's all is saved using dill, so if you have the same code, you can load the saved stacktrace into a pdb session and debug the crash, as if you could if you had put an actual breakpoint into the place of failure. Pretty cool, huh?