Replace bash with a python script

Author: sfackler

.gitignore

@@ -0,0 +1 @@
+__pycache__

.metadata-lib

@@ -2,10 +2,12 @@ language: bash
 services: docker
 
 env:
-  - VERSION=1.37.0 VARIANT=buster/slim
-  - VERSION=1.37.0 VARIANT=buster
-  - VERSION=1.37.0 VARIANT=stretch/slim
+#VERSIONS
   - VERSION=1.37.0 VARIANT=stretch
+  - VERSION=1.37.0 VARIANT=stretch/slim
+  - VERSION=1.37.0 VARIANT=buster
+  - VERSION=1.37.0 VARIANT=buster/slim
+#VERSIONS
 
 install:
   - git clone https://github.com/docker-library/official-images.git ~/official-images