requirements: add cachetools

diff --git a/requirements.txt b/requirements.txt
index 340f048..ea34d02 100644 (file)
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,3 +9,4 @@ pycrypto==2.6.1
 PyYAML==3.13
 simplejson==3.16.0
 yarl==1.2.6
+cachetools