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"""
Copyright 2008 Free Software Foundation, Inc.
This file is part of GNU Radio
GNU Radio Companion 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.
GNU Radio Companion 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
"""
from UserDict import DictMixin
class odict(DictMixin):
def __init__(self, d={}):
self._keys = list(d.keys())
self._data = dict(d.copy())
def __setitem__(self, key, value):
if key not in self._data:
self._keys.append(key)
self._data[key] = value
def __getitem__(self, key):
return self._data[key]
def __delitem__(self, key):
del self._data[key]
self._keys.remove(key)
def keys(self):
return list(self._keys)
def copy(self):
copy_dict = odict()
copy_dict._data = self._data.copy()
copy_dict._keys = list(self._keys)
return copy_dict
def exists_or_else(d, key, alt):
if d.has_key(key): return d[key]
else: return alt
def listify(d, key):
obj = exists_or_else(d, key, [])
if isinstance(obj, list): return obj
return [obj]
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