Dockerfile.submit: use python3

pbui · pbui · commit 93afca438f4d · 2019-08-30T14:55:47.000-04:00
diff --git a/Dockerfile.submit b/Dockerfile.submit
@@ -4,4 +4,4 @@ MAINTAINER  Peter Bui <pbui@nd.edu>
 RUN	    apk update
 
 # Run-time dependencies
-RUN	    apk add python py-tornado py-requests py-yaml
+RUN	    apk add python3 py3-tornado py3-requests py3-yaml
