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rpdb · PyPI

Project description rpdb - remote debugger based on pdb

rpdb is a wrapper around pdb that re-routes stdin and stdout to a socket handler. By default it opens the debugger on port 4444:

import rpdb; rpdb.set_trace()

But you can change that by simply instantiating Rpdb manually:

import rpdb
debugger = rpdb.Rpdb(port=12345)
debugger.set_trace()

It is known to work on Jython 2.5 to 2.7, Python 2.5 to 3.1. It was written originally for Jython since this is pretty much the only way to debug it when running it on Tomcat.

Upon reaching set_trace(), your script will "hang" and the only way to get it to continue is to access rpdb using telnet, netcat, etc..:

nc 127.0.0.1 4444
Installation in CPython (standard Python) 
pip install rpdb

For a quick, ad hoc alternative, you can copy the entire rpdb subdirectory (the directory directly containing the init.py file) to somewhere on your $PYTHONPATH.

Installation in a Tomcat webapp

Just copy the rpdb directory (the one with the init.py file) in your WEB-INF/lib/Lib folder along with the standard Jython library (required).

Trigger rpdb with signal

set_trace() can be triggered at any time by using the TRAP signal handler. This allows you to debug a running process independently of a specific failure or breakpoint:

import rpdb
rpdb.handle_trap()

# As with set_trace, you can optionally specify addr and port
rpdb.handle_trap("0.0.0.0", 54321)

Calling handle_trap will overwrite the existing handler for SIGTRAP if one has already been defined in your application.

Known bugs Author(s)

Bertrand Janin b@janin.com - http://tamentis.com/

With contributions from (chronological, latest first):

This is inspired by:

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