Source code for taurus.core.util.prop

#!/usr/bin/env python

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# This file is part of Taurus
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# http://taurus-scada.org
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# Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
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# Taurus is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
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# Taurus is distributed in the hope that it will be useful,
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"""This module contains a decorator to simplify the use of property."""
from __future__ import print_function
from __future__ import absolute_import


__all__ = ["propertx"]

__docformat__ = "restructuredtext"


[docs]def propertx(fct): ''' Decorator to simplify the use of property. Like @property for attrs who need more than a getter. For getter only property use @property. adapted from http://code.activestate.com/recipes/502243/ ''' arg = [None, None, None, None] for i, f in enumerate(fct()): arg[i] = f if not arg[3]: arg[3] = fct.__doc__ return property(*arg)
if __name__ == '__main__': from .log import Logger class example(object, Logger): def __init__(self): Logger.__init__(self, "example") self._a = 100 self.bar = "why" @propertx def bar(): # BAR doc def get(self): print("\tgetting", self._a) return self._a def set(self, val): print("\tsetting", val) self._a = val return get, set foo = example() print(foo.bar) # foo.bar='egg' # print foo.bar