How can I debug pserve using Eclipse?

Question

I'm getting started with Pyramid development on Windows. I have Python 2.7 installed. I used virtualenv to create a nice sandbox for my Pyramid app. I also created PyDev 2.4 on Eclipse Indigo. I also created a separate PyDev interpreter just for my virutalenv, so it should have access to all the directories.

I set up a new debug configuration.

• Project: testapp (the only project in the workspace)
• Main module: ${workspace_loc:testapp/Scripts/pserve-script.py}
• Args: development.ini
• Working dir: Other: ${workspace_loc:testapp/testapp}

When I hit Debug, the output is:

pydev debugger: starting Starting server in PID 2208.
Unhandled exception in thread started by
Traceback (most recent call last):
File "C:\Tools\eclipse-cpp-indigo-SR1-incubation-win32-x86_64\eclipse\plugins\org.python.pydev.debug_2.3.0.2011121518\pysrc\pydevd.py", line 200, in __call__ Unhandled exception in thread started by
Traceback (most recent call last):
Unhandled exception in thread started by
Traceback (most recent call last):
File "C:\Tools\eclipse-cpp-indigo-SR1-incubation-win32-x86_64\eclipse\plugins\org.python.pydev.debug_2.3.0.2011121518\pysrc\pydevd.py", line 200, in __call__ self.original_func(*self.args, **self.kwargs)
Unhandled exception in thread started by
File "C:\Tools\eclipse-cpp-indigo-SR1-incubation-win32-x86_64\eclipse\plugins\org.python.pydev.debug_2.3.0.2011121518\pysrc\pydevd.py", line 200, in __call__
TypeErrorTraceback (most recent call last):
self.original_func(*self.args, **self.kwargs) :
File "C:\Tools\eclipse-cpp-indigo-SR1-incubation-win32-x86_64\eclipse\plugins\org.python.pydev.debug_2.3.0.2011121518\pysrc\pydevd.py", line 200, in __call__ self.original_func(*self.args, **self.kwargs)
TypeErrorThreadedTaskDispatcher object argument after ** must be a mapping, not tuple
TypeError: self.original_func(*self.args, **self.kwargs) : ThreadedTaskDispatcher object argument after ** must be a mapping, not tuple
TypeErrorThreadedTaskDispatcher object argument after ** must be a mapping, not tuple :
ThreadedTaskDispatcher object argument after ** must be a mapping, not tuple
serving on http://0.0.0.0:6543

Even though it says the server is running, it's not. Nothing is listening on that port.

Any idea on how to fix this? Debugging certainly isn't necessary, but I like having a fully set up development environment. Thanks!

Answer 1

Pyramid includes remarkably good debug support in the form of the debug toolbar.

Make sure that the line

pyramid.includes = pyramid_debugtoolbar

in your development.ini isn't commented out to enable it. It doesn't support Eclipse breakpoints, but gives almost everything else you'd want.