utils.py 文件源码

def get_concrete_subclasses_recursive(c):
    """Recursively returns only the concrete classes is a class hierarchy"""
    concreteSubclasses = []
    subclasses = get_subclasses_recursive(c)
    for d in subclasses:
        if not inspect.isabstract(d):
            concreteSubclasses.append(d)
    return concreteSubclasses