Using Wing with Twisted

Project Configuration

To create a new project, use New Project in Wing's Project menu. Select or create your source directory with the Existing directory or New directory card. Then, under Python, set Environment to Existing Python, choose Other: in Python Executable, and enter the full path of the Python you plan to use with Twisted. You can determine the correct value to use by executing the following commands interactively in Python. If you are using virtualenv, this will be the virtualenv's Python executable:

import sys
sys.executable

Then press Create Project.

Debug Configuration

To debug Twisted code launched from within Wing, create a file with the following contents and set it as your main entry point by adding it to your project and then using the Set Main Entry Point item in the Debug menu:

from twisted.scripts.twistd import run
import os
try:
    os.unlink('twistd.pid')
except OSError:
    pass
run()

Then go into the File Properties for this file (by right clicking on it) and set Run Arguments as follows:

-n -y filename.tac

The -n option tells Twisted not to daemonize, which would cause the debugger to fail because sub-processes are not automatically debugged. The -y option serves to point Twisted at your .tac file. Replace filename.tac in the above example with the correct name of your file.

Wing may be able to debug Twisted without the -n option, if you enable Debug Child Processes under the Debug/Execute tab of Project Properties, from the Project menu.

You can also launch Twisted code from outside of Wing as described in Debugging Externally Launched Code in the manual.

Related Documents

For more information see: