Set core version compatible specifier to packages.

daspecster · daspecster · commit 4eeccac03c73 · 2016-11-21T14:52:51.000-05:00
diff --git a/packages/google-cloud-datastore/setup.py b/packages/google-cloud-datastore/setup.py
@@ -50,7 +50,7 @@
 
 
 REQUIREMENTS = [
-    'google-cloud-core >= 0.21.0',
+    'google-cloud-core >= 0.21.0, < 0.22dev',
     'grpcio >= 1.0.0, < 2.0dev',
 ]
 
