initial commit

rpn.py

+#!/usr/bin/env python3
+def calculate(arg):
+    pass
+
+def main():
+    while True:
+        calculate(input("rpn calc> "))
+
+if __name__ == '__main__':
+    main()
+

test_rpn.py

+import unittest
+import rpn
+
+class TestBasics(unittest.TestCase):
+    def test_add(self):
+        result = rpn.calculate('1 1 +')
+        self.assertEqual(2, result)
+