add autopep8 formatting

scripts/format.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+which autopep8 &> /dev/null || { echo "autopep8 not found, please install it."; exit 1; }
+
+autopep8 --in-place --aggressive --aggressive --recursive --exclude bin,lib,include,venv,.git,__pycache__ .
+
+echo "Code formatted with autopep8."