From 4c4f0f3c5e1bc31943b71e42110a2ef1b6642e24 Mon Sep 17 00:00:00 2001
From: hadrianl <137150224@qq.com>
Date: Tue, 22 Dec 2020 10:50:04 +0800
Subject: [PATCH] black format

---
 qlib/data/cache.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/qlib/data/cache.py b/qlib/data/cache.py
index a652018ff..f6659e863 100644
--- a/qlib/data/cache.py
+++ b/qlib/data/cache.py
@@ -174,9 +174,9 @@ class MemCache:
         mem_cache_size_limit: cache max size.
         limit_type: length or sizeof; length(call fun: len), size(call fun: sys.getsizeof).
         """
-        
+
         size_limit = C.mem_cache_size_limit if mem_cache_size_limit is None else mem_cache_size_limit
-        
+
         if limit_type == "length":
             self.__calendar_mem_cache = MemCacheLengthUnit(size_limit)
             self.__instrument_mem_cache = MemCacheLengthUnit(size_limit)