#! /usr/bin/env python
# vim: filetype=python
#
# Python startup file. Version 0.1.
# Install by save this file as ~/.pythonrc and setting PYTHONSTARTUP
# environment variable to ~/.pythonrc.
#
# Copyright (C) 2003-2008 Dmitry Vasiliev <dima@hlabs.spb.ru>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

try:
    import readline
    import rlcompleter
except ImportError:
    readline = rlcompleter = None


def write_history(history):
    """Write interactive interpreter session."""
    import sys
    import readline
    try:
        readline.write_history_file(history)
    except IOError, args:
        print >>sys.stderr, ("Error writing history file %s: %s" %
            (history, args[1]))

def read_history():
    """Read interactive interpreter session."""
    import sys
    import errno
    import atexit
    from os.path import expanduser

    readline.parse_and_bind("tab: complete")
    history = expanduser("~/.python_history")
    if not history.startswith('~'):
        atexit.register(write_history, history)
        try:
            readline.read_history_file(history)
        except IOError, args:
            if args[0] != errno.ENOENT:
                print >>sys.stderr, ("Error reading history file %s: %s" %
                    (history, args[1]))


if __name__ == "__main__":
    if readline is not None:
        read_history()
    del readline, rlcompleter, read_history, write_history, __file__