python路径找类并获取静态字段

Python通过路径找类并获取其中大写的静态字段

settings.py

class Foo:
    DEBUG = True
    TEST = True

xx.py

 import importlib

 path = "settings.Foo"

 p,c = path.rsplit('.', maxsplit=1)
 m = importlib.import_module(p)
 cls = getattr(m, c)

 # 如果找到这个类？
 for key in dir(cls):
     if key.isupper():
         print(key, getattr(cls, key))