OK, trying some grown-up work.

bin/hy-lex-json

@@ -0,0 +1,12 @@
+#!/usr/bin/env python
+
+from hy.lex.tokenize import tokenize
+import json
+import sys
+
+
+print json.dumps(
+    tokenize(open(sys.argv[1], 'r').read()),
+    indent=4,
+    sort_keys=True
+)

test.hy

@@ -0,0 +1,8 @@
+; vim: tabstop=2 expandtab shiftwidth=2 softtabstop=2 filetype=lisp
+
+(ns test)
+
+(def square
+  (fn [x] (* x x)))
+
+(print (square 4))