From BlenderWiki
Blender Add-On Debugging Info
Programming Add-ons for Blender
http://airplanes3d.net/pydev-000_e.xml
Development Tools
https://wiki.blender.org/index.php/Dev:Doc/Tools
Tips and Tricks
https://docs.blender.org/api/blender_python_api_current/info_tips_and_tricks.html
Gotchas
https://docs.blender.org/api/blender_python_api_current/info_gotcha.html
Profiling Python Code (stub)
https://wiki.blender.org/index.php/Dev:Doc/Tools/Debugging/Python_Profile
Blender ‘BreakPoint’ Addon - Good Spirit Graphics
http://goodspiritgraphics.com/software/products/breakpoint-addon/
Python, Blender and a bit of debuggery - via Eclipse and PyDev
http://daniepstein.com/daniepstein/tutorials/python-blender-and-a-bit-of-debuggery/
Debugging Python code with PyCharm
https://code.blender.org/2015/10/debugging-python-code-with-pycharm/
Debugging Blender from Eclipse
https://wiki.blender.org/index.php/Dev:Doc/Tools/Debugging/Python_Eclipse
Trace or track Python statement execution -python.org
https://docs.python.org/3.5/library/trace.html
The Python Debugger - python.org
https://docs.python.org/3.4/library/pdb.html
Python Tools for Visual Studio (PTVS)
https://www.visualstudio.com/vs/python/?wt.mc_id=aka_ms_python
Script Watcher - Reloads an external script on edits
https://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Development/Script_Watcher
Profiling: Using kernprof in Blender add-ons
http://blog.michelanders.nl/2016/12/profiling-using-kernprof-in-blender-addons.html
Logging from Python code in Blender
https://code.blender.org/2016/05/logging-from-python-code-in-blender/
Addon Development Tool
https://github.com/natecraddock/AddonDevelopmentTool
georgevdd blender-eclipse overview
https://github.com/georgevdd/blender-eclipse
Rhino Python remote debugging with PyDev
https://www.youtube.com/watch?v=nQieYXP5zWw
Rhino Python remote debugging with PyCharm
https://www.youtube.com/watch?v=6ar_CWDZIt0
Using PyCharm's Debugger with Modo 701
https://www.youtube.com/watch?v=crFqZhuiz7Q
Visual Studio Python Tutorial Deep Dive: Cross-platform Remote Debugging
https://www.youtube.com/watch?v=y1Qq7BrV6Cc
HOW-TO:Debug Python Scripts with Eclipse
http://kodi.wiki/view/How-to:Debug_Python_Scripts_with_Eclipse
mutantbob's Python predefinition (*.pypredef) generator for Blender API
https://github.com/mutantbob/pycharm-blender/blob/master/python_api/pypredef_gen.py
PyDev Installation instructions
http://www.pydev.org/manual_101_install.html
PyDev Remote Debugger walk through
http://www.pydev.org/manual_adv_remote_debugger.html
Other
http://blender.stackexchange.com/questions/2502/can-i-run-a-python-script-step-by-step-in-blender
http://blender.stackexchange.com/questions/3066/step-by-step-execution-of-bge-mainloop-for-debugging
