实现配置文件插拔式设计

config/__init__.py

@@ -0,0 +1,17 @@
+import importlib
+from config import default
+
+
+class Settings(object):
+    def __init__(self):
+        # 获取全局变量中的配置信息
+        for attr in dir(default):
+            setattr(self, attr, getattr(default, attr))
+
+        setting = importlib.import_module('config.setting')
+
+        for attr in dir(setting):
+            setattr(self, attr, getattr(setting, attr))
+
+
+settings = Settings()