Merged revisions 68920 via svnmerge from

mdickinson · mdickinson · commit e6aad75f2ba5 · 2009-01-25T10:48:51.000Z
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r68920 | mark.dickinson | 2009-01-25 10:39:15 +0000 (Sun, 25 Jan 2009) | 2 lines

  Remove uses of cmp from the decimal module.
........
diff --git a/Lib/decimal.py b/Lib/decimal.py
@@ -805,9 +805,16 @@ def _cmp(self, other):
         if self > other.  This routine is for internal use only."""
 
         if self._is_special or other._is_special:
-            return cmp(self._isinfinity(), other._isinfinity())
+            self_inf = self._isinfinity()
+            other_inf = other._isinfinity()
+            if self_inf == other_inf:
+                return 0
+            elif self_inf < other_inf:
+                return -1
+            else:
+                return 1
 
-        # check for zeros;  note that cmp(0, -0) should return 0
+        # check for zeros;  Decimal('0') == Decimal('-0')
         if not self:
             if not other:
                 return 0
@@ -827,7 +834,12 @@ def _cmp(self, other):
         if self_adjusted == other_adjusted:
             self_padded = self._int + '0'*(self._exp - other._exp)
             other_padded = other._int + '0'*(other._exp - self._exp)
-            return cmp(self_padded, other_padded) * (-1)**self._sign
+            if self_padded == other_padded:
+                return 0
+            elif self_padded < other_padded:
+                return -(-1)**self._sign
+            else:
+                return (-1)**self._sign
         elif self_adjusted > other_adjusted:
             return (-1)**self._sign
         else: # self_adjusted < other_adjusted
