attrs : (indirect) requirement

prjemian · prjemian · commit 91f8605581f5 · 2019-06-10T15:15:16.000-05:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,3 +1,4 @@
+attrs>=17.4.0
 bluesky
 databroker[all]
 event-model>=1.10
