From ae4683aa24963bc7be9e3729220c42ccf76f64d8 Mon Sep 17 00:00:00 2001
From: Reinier Heeres <rwh@rwh.(none)>
Date: Sun, 08 Jun 2008 17:30:51 +0000
Subject: Fix bug in Rational.__rsub__  and .__neg__

---
diff --git a/rational.py b/rational.py
index 381b05a..34b298f 100644
--- a/rational.py
+++ b/rational.py
@@ -95,7 +95,7 @@ class Rational:
         return ret
 
     def __rsub__(self, lval):
-        return self.__sub__(lval)
+        return -self.__sub__(lval)
 
     def __mul__(self, rval):
         if isinstance(rval, Rational):
@@ -124,7 +124,7 @@ class Rational:
         return self.__div__(lval)
 
     def __neg__(self):
-        self.n = -self.n
+        return Rational(-self.n, self.d)
 
     def __abs__(self):
         self.n = abs(self.n)
--
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