PARSER=bin/markdown_ast.rb
DST=_site
-# Check Python 3 (https://stackoverflow.com/a/4933395)
+# Check Python 3 is installed and determine if it's called via python3 or python
+# (https://stackoverflow.com/a/4933395)
ifneq (, $(shell which python3))
PYTHON := python3
else ifneq (, $(shell which python))