@@ -0,0 +1,213 @@
+class Number:%0A    def __init__(self, value):%0A        self.value = value%0A        %0A    def eval(self, env):%0A        return self.value%0A        %0A    def __repr__(self):%0A        return %22Number: %7B0%7D%22.format(self.value)%0A

Create number.py