diff --git a/sub/bash/functions b/sub/bash/functions
index 476ca94..6fe01a4 100644
--- a/sub/bash/functions
+++ b/sub/bash/functions
@@ -148,6 +148,6 @@ docker_ips() {
 
 
 py() {
-    test -z "$@" && ipython -i -c "q = exit" || ipython $@
+    test -z "$@" && ipython -i -c "q = exit" || python3 $@
 }