IPython Debugger

ipydb.py

# -*- coding: utf-8 -*-

import sys
import warnings

_ipydb_active = False

def ipydb():
    """Try to use the iPython debugger on program failures."""
    global _ipydb_active
    if _ipydb_active:
        return
    
    try:
        from IPython.core import ultratb
    except ImportError:
        warnings.warn("Not enabling IPython debugger because"
            " 'IPython' isn't installed!")
    else:
        _file = getattr(sys.modules['__main__'], '__file__', '')
        sys.excepthook = ultratb.ColorTB(color_scheme='Linux', call_pdb=1)
        setattr(sys.modules['__main__'], '__file__', _file)
        __ipydb_active = True