Independent Client/Server Debugger (using multiprocessing)
Project description
Independent remote client-server Python Debugger, based on bdb and multiprocessing (Python’s StandardLibrary). Originally, this module was named qdb, due it uses queues (via pipes) internally.
Used in:
web2py (integrated to official admin app)
rad2py (wxPython IDE in development)
Standalone version can be run from the console (like pdb).
To start a debug session for debuggee.py:
python3 -m dbg debuggee.py
Then start the console client:
python3 -m dbg
To start to debug from inside a running program just do:
import dbg; dbg.debug()
Note that debug connects to the debugger but doesn’t stop immediately (it is designed to be used with visual frontends that set breakpoints at startup). Also, you could use set_trace as a shortcut to start the debugger and stop in the following line:
import dbg; dbg.set_trace()
The “server” frontend (debugger) uses multiprocessing.connection.Listener and the client “backend” (debuggee) uses multiprocessing.connection.Client. This allows for a single frontend to host multiple debugging sessions (multithreading and multiprocessing could be supported).
Python2 and Python3 compatibility is archived using Pickle 2 standard protocol, so you can debug a py3k app from a py2 IDE. No dependencies are need.
Per default, it listen on port 6000 (TCP), but that can be configured via environments variables or parameters (host, port, authkey)
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