What about ipdb.set_trace() ? In your code : import ipdb; ipdb.set_trace() update: now in Python 3.7, we can write breakpoint(). It works the same, but it also obeys to the PYTHONBREAKPOINT environment variable. This feature comes from this PEP. This allows for full inspection of your code, and you have access to commands such as … Read more
At this time, pdb does not have the ability to halt and begin debugging on a running program. You have a few other options: GDB You can use GDB to debug at the C level. This is a bit more abstract because you’re poking around Python’s C source code rather than your actual Python script, … Read more
You can run your program into pdb from the command line by running python -m pdb your_script.py It will break on the 1st line, then you’ll be able to add a breakpoint wherever you want in your code using the break command, its syntax is: b(reak) [[filename:]lineno | function[, condition]] It is flexible enough to … Read more
You can use ipdb inside jupyter with: from IPython.core.debugger import Tracer; Tracer()() Edit: the functions above are deprecated since IPython 5.1. This is the new approach: from IPython.core.debugger import set_trace Add set_trace() where you need a breakpoint. Type help for ipdb commands when the input field appears.
Here’s a list of resources to get started with the Python debugger: Read Steve Ferb’s article “Debugging in Python” Watch Eric Holscher’s screencast “Using pdb, the Python Debugger” Read the Python documentation for pdb — The Python Debugger Read Chapter 9—When You Don’t Even Know What to Log: Using Debuggers—of Karen Tracey’s Django 1.1 Testing … Read more