From f4bfe8e6197aa52bfb759c3981346953f8306f41 Mon Sep 17 00:00:00 2001
From: Jactus <dw1920@nyu.edu>
Date: Fri, 16 Apr 2021 14:35:05 +0800
Subject: [PATCH] First trial of adding docstring

---
 qlib/log.py | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/qlib/log.py b/qlib/log.py
index 017e8e339..c7d269f4d 100644
--- a/qlib/log.py
+++ b/qlib/log.py
@@ -12,7 +12,23 @@ from contextlib import contextmanager
 from .config import C
 
 
-class QlibLogger:
+class MetaLogger(type):
+    def __init__(self, name, bases, dic):
+        super().__init__(name, bases, dic)
+
+    def __new__(cls, name, bases, dict):
+        wrapper_dict = type(logging.getLogger("module_name")).__dict__.copy()
+        wrapper_dict.update(dict)
+        wrapper_dict["__doc__"] = logging.getLogger("module_name").__doc__
+        return type.__new__(cls, name, bases, wrapper_dict)
+
+    def __call__(cls, *args, **kwargs):
+        obj = cls.__new__(cls)
+        cls.__init__(cls, *args, **kwargs)
+        return obj
+
+
+class QlibLogger(metaclass=MetaLogger):
     """
     Customized logger for Qlib.
     """