diff --git a/Scrapy-Redis-Zhihu/scrapy_redis/picklecompat.py b/Scrapy-Redis-Zhihu/scrapy_redis/picklecompat.py
new file mode 100644
index 0000000..a8d85c0
--- /dev/null
+++ b/Scrapy-Redis-Zhihu/scrapy_redis/picklecompat.py
@@ -0,0 +1,14 @@
+"""A pickle wrapper module with protocol=-1 by default."""
+
+try:
+    import cPickle as pickle  # PY2
+except ImportError:
+    import pickle
+
+
+def loads(s):
+    return pickle.loads(s)
+
+
+def dumps(obj):
+    return pickle.dumps(obj, protocol=-1)