From 54ebfc12e7c33f9214ed9658fea2bc243bbd38af Mon Sep 17 00:00:00 2001
From: zhupr <zhu.pengrong@foxmail.com>
Date: Mon, 23 Aug 2021 16:47:06 +0800
Subject: [PATCH] Fix multi-process loop calls

---
 qlib/utils/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qlib/utils/__init__.py b/qlib/utils/__init__.py
index 2fe9eafed20..5f5a81ea7d7 100644
--- a/qlib/utils/__init__.py
+++ b/qlib/utils/__init__.py
@@ -794,7 +794,7 @@ def __repr__(self):
         return "{name}(provider={provider})".format(name=self.__class__.__name__, provider=self._provider)
 
     def __getattr__(self, key):
-        if self._provider is None:
+        if self.__dict__.get("_provider", None) is None:
             raise AttributeError("Please run qlib.init() first using qlib")
         return getattr(self._provider, key)