attribute and descriptor

attribute.py

class X(object):
    property = property(fget=lambda x: "property value")
    direct_attribute = "direct_attribute"

    def method(self):
        return "method value: %s" % id(self)

    @classmethod
    def classmethod(self):
        return "classmethod value: %s" % id(self)

    @staticmethod
    def staticmethod():
        return "staticmethod value"


x = X()

print 'x.__dict__'
print x.__dict__

print '\nx.property'
print '-' * 60
print "x.property                                      ", x.property
print "type(x).__dict__['property']                    ", type(x).__dict__['property']
print "type(x).__dict__['property'].__get__(x, type(x))", type(x).__dict__['property'].__get__(x, type(x))

print '\nx.direct_attribute'
print '-' * 60
print "x.direct_attribute                  ", x.direct_attribute
print "type(x.direct_attribute)            ", type(x.direct_attribute)
print "type(x).__dict__['direct_attribute']", type(x).__dict__['direct_attribute']

print '\nx.method'
print '-' * 60
print "id(x)                                         ", id(x)
print "x.method()                                    ", x.method()
print "x.method                                      ", x.method
print "type(x).__dict__['method']                    ", type(x).__dict__['method']
print "type(x).__dict__['method'].__get__(x, type(x))", type(x).__dict__['method'].__get__(x, type(x))

print '\nx.classmethod'
print '-' * 60
print "id(type(x))                                        ", id(type(x))
print "x.classmethod()                                    ", x.classmethod()
print "x.classmethod                                      ", x.classmethod
print "type(x).__dict__['classmethod']                    ", type(x).__dict__['classmethod']
print "type(x).__dict__['classmethod'].__get__(x, type(x))", type(x).__dict__['classmethod'].__get__(x, type(x))

print '\nx.staticmethod'
print '-' * 60
print "x.staticmethod()                                    ", x.staticmethod()
print "x.staticmethod                                      ", x.staticmethod
print "type(x).__dict__['staticmethod']                    ", type(x).__dict__['staticmethod']
print "type(x).__dict__['staticmethod'].__get__(x, type(x))", type(x).__dict__['staticmethod'].__get__(x, type(x))