# Command line history:
import readline
histfile = os.path.expanduser("~/.pdb-history")

try:
    readline.read_history_file(histfile)
except IOError:
    pass

def savehist():
    import readline
    readline.set_history_length(50)
    readline.write_history_file(histfile)

import atexit
atexit.register(savehist)

# return to debugger after fatal exception (Python cookbook 14.5):
import sys
def info(type, value, tb):
    if hasattr(sys, 'ps1') or not sys.stderr.isatty():
        sys.__excepthook__(type, value, tb)
    import traceback, pdb
    traceback.print_exception(type, value, tb)
    print
    pdb.pm()
sys.excepthook = info

# Cleanup any variables that could otherwise clutter up the namespace.
del atexit, info, readline, rlcompleter, savehist