From c48b4c99712fbacd6d477e43d8209796d877d682 Mon Sep 17 00:00:00 2001
From: D-X-Y <D-X-Y@users.noreply.github.com>
Date: Tue, 2 Mar 2021 21:06:32 +0800
Subject: [PATCH] Make Wrapper with a informative str repr.

---
 qlib/utils/__init__.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/qlib/utils/__init__.py b/qlib/utils/__init__.py
index be7969b65..484c0bbef 100644
--- a/qlib/utils/__init__.py
+++ b/qlib/utils/__init__.py
@@ -722,6 +722,10 @@ class Wrapper:
     def register(self, provider):
         self._provider = provider
 
+    def __repr__(self):
+        return ('{name}(provider={provider})'.format(name=self.__class__.__name__,
+                                                     provider=self._provider))
+
     def __getattr__(self, key):
         if self._provider is None:
             raise AttributeError("Please run qlib.init() first using qlib")