Pydev/eclipse:无法识别动态创建的类

在Foo模块中,我有一个函数:

def register_scheme(class_name,*properties_class):
    scheme_class = type(class_name, (Scheme,), dict( _properties_classes={c.__name__:c for c in properties_class} )) # Scheme is another class defined in Foo
    globals()[class_name] = scheme_class

在导入Foo I的另一个模块中:

foo.register_scheme("ball",color,distance) # color and distance are two classes defined in this module

现在我可以这样做了:

ball = foo.ball("color"=red,"distance"=0.5) # __init__ function of Scheme takes care of this, code not shown

代码工作正常,但pydev抱怨说“import:ball中的未定义变量”。

这是意料之中的。问题是,我将在代码中注册大量的“方案”,导致到处都是错误消息。我想这不会有可怕的后果,但那真的很烦人。

有人能找到解决办法吗?

编辑

这是我的解决方案,它与我想要的不完全相符,但足够接近

def register_scheme(class_name,*properties_class):
    #here some code checking if this class name is ok, removed for brevity #
    scheme_class = type(class_name, (Scheme,), dict( _properties_classes={c.__name__:c for c in properties_class} )) 
    Scheme._known_scheme_classes[class_name]=scheme_class # _known_scheme_classes is a class dict of Scheme

def create(scheme_class_name,**values):
    # some code checking such class has been registered, removed for brevity #
    return Scheme._known_scheme_classes[scheme_class_name](**values)

现在我可以在其他模块中导入foo:

foo.register_scheme("ball",color,distance)
my_ball = foo.create("ball",color="red",distance=0.5)