# Copyright (C) 2005, Giovanni Bajo

# Based on previous work under copyright (c) 2001, 2002 McMillan Enterprises, Inc.

#

# 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 2

# 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, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

import sys, string

def hook(mod):

    names = sys.builtin_module_names

    if 'posix' in names:

        removes = ['nt', 'ntpath', 'dos', 'dospath', 'os2', 'mac', 'macpath',

                   'ce', 'riscos', 'riscospath', 'win32api', 'riscosenviron']

    elif 'nt' in names:

        removes = ['dos', 'dospath', 'os2', 'mac', 'macpath', 'ce', 'riscos',

                   'riscospath', 'riscosenviron',]

    elif 'os2' in names:

        removes = ['nt', 'dos', 'dospath', 'mac', 'macpath', 'win32api', 'ce',

                   'riscos', 'riscospath', 'riscosenviron',]

    elif 'dos' in names:

        removes = ['nt', 'ntpath', 'os2', 'mac', 'macpath', 'win32api', 'ce',

                   'riscos', 'riscospath', 'riscosenviron',]

    elif 'mac' in names:

        removes = ['nt', 'ntpath', 'dos', 'dospath', 'os2', 'win32api', 'ce',

                   'riscos', 'riscospath', 'riscosenviron',]

    for i in range(len(mod.imports)-1, -1, -1):

        nm = mod.imports[i][0]

        pos = string.find(nm, '.')

        if pos > -1:

            nm = nm[:pos]

        if nm in removes :

            del mod.imports[i]

    return mod