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Nurdok/pybean.py

Created January 12, 2013 19:32
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  1. Nurdok created this gist Jan 12, 2013.
    29 changes: 29 additions & 0 deletions pybean.py
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,29 @@
    """TODO: A docstring"""


    class Bean(type):
    def __init__(cls, name, bases, dct):
    def init(self, *args, **kwargs):
    for attr, arg in zip(cls._attrs, args):
    setattr(self, attr, arg)
    for name, value in kwargs.iteritems():
    setattr(self, name, value)
    undefined = []
    for attr in cls._attrs:
    try:
    getattr(self, attr)
    except AttributeError:
    undefined.append(attr)
    if undefined:
    print undefined
    raise ValueError('The following arguments are missing: {0}'
    .format(', '.join(undefined)))
    setattr(cls, '__init__', init)


    class Point(object):
    __metaclass__ = Bean
    _attrs = ('x', 'y')

    p = Point(2, 5)
    print p