Revision 16 as of 2009-08-26 17:08:13

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Python debuggers:

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Unix & Multi-platform Debuggers





Unix,Mac OS X

A visual, console-based, full-screen debugger, designed as a more comfortable drop-in replacement for pdb. (also supports IPython)


Unix,Windows,Mac OS X

( is Obsolete replaced by rpdb2) improves's usability and adds support for remote debugging, multiple threads debugging, post mortem of unhandled exceptions, and for debugging of embedded scripts.



A .pdbrc for Pyhon's standard debugger, pdb, which allows you to run arbitrary Python commands on pdb startup.

HAP Python Remote Debugger


A python IDE with remote debugging capability.

Winpdb and Rpdb2


an advanced python debugger, with support for smart breakpoints, multiple threads, namespace modification, embedded debugging, encrypted communication and speed of up to 20 times that of pdb.


Mac OS X, OS/2, Unix, VMS and Windows

both a CPYTHON and a JPYTHON(JYTHON) debugging framework which has been integrated inside Jedit as a standard jedit pluggin.


Unix, Windows, OS X

An expanded version of the pdb loosely based on the gdb command set. The debugger supports thread debugging, signal handling, non-interactive tracing, and much more.



DDD is a graphical front-end for command-line debuggers such as GDB, DBX, WDB, Ladebug, JDB, XDB, the Perl debugger, the bash debugger, GNU Make debugger, or the Python debugger. DDD displays data structures as graphs and plots. A deprecated version of pydb comes with this package. For GNU make debugging, use ddd-test5



Debugger for Python programs with a graphical user interface. It is inherited from "bdb" but uses a GUI and has some powerful features like object browser, windows for variables, classes, functions, exceptions, stack, conditional breakpoints, etc.


Mac OS X, Linux, Windows

Allows debugging multiple threads in Jython and Python (It is featured as a 'Python IDE' plugin for Eclipse).



See DebuggingWithGdb

Wing IDE

Mac OS X, Linux, Windows

An IDE that can debug multiple threads in code launched from the IDE or code launched externally, running under CPython and Stackless Python. The GUI includes a Debug Probe, which is a Python shell running in the context of the paused debug process. The IDE's debugger also features value watching (by symbolic path, object reference, or a combination), conditional breakpoints, debugging of tests running in the integrated unit testing tool, special support for Zope2 and Plone, and How-Tos for debugging Turbogears, Django, Google App Engine, wxWidgets, PyQt, Tkinter, CGIs, and many other packages.

Komodo IDE

Mac OS X, Linux, Windows

Special-purpose tools







Trace hook logger which outputs each thread in its own "swimlane" to make multithreaded analysis easier. Can also time calls (naively) and watch variables.


GoogleAppEngine + Firefox

"FirePython is a sexy python logger console integrated into Firebug (similar to FirePHP)". See

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