Merged revisions 59952-59984 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r59952 | thomas.heller | 2008-01-14 02:35:28 -0800 (Mon, 14 Jan 2008) | 1 line

  Issue 1821: configure libffi for amd64 on FreeeBSD.
........
  r59953 | andrew.kuchling | 2008-01-14 06:48:43 -0800 (Mon, 14 Jan 2008) | 1 line

  Update description of float_info
........
  r59959 | raymond.hettinger | 2008-01-14 14:58:05 -0800 (Mon, 14 Jan 2008) | 1 line

  Fix 1698398:  Zipfile.printdir() crashed because the format string expected a tuple object of length six instead of a time.struct_time object.
........
  r59961 | andrew.kuchling | 2008-01-14 17:29:16 -0800 (Mon, 14 Jan 2008) | 1 line

  Typo fixes
........
  r59962 | andrew.kuchling | 2008-01-14 17:29:44 -0800 (Mon, 14 Jan 2008) | 1 line

  Markup fix
........
  r59963 | andrew.kuchling | 2008-01-14 17:47:32 -0800 (Mon, 14 Jan 2008) | 1 line

  Add many items
........
  r59964 | andrew.kuchling | 2008-01-14 17:55:32 -0800 (Mon, 14 Jan 2008) | 1 line

  Repair unfinished sentence
........
  r59967 | raymond.hettinger | 2008-01-14 19:02:37 -0800 (Mon, 14 Jan 2008) | 5 lines

  Issue 1820:  structseq objects did not work with the % formatting operator or isinstance(t, tuple).

  Orignal patch (without tests) by Leif Walsh.
........
  r59968 | raymond.hettinger | 2008-01-14 19:07:42 -0800 (Mon, 14 Jan 2008) | 1 line

  Tighten the definition of a named tuple.
........
  r59969 | skip.montanaro | 2008-01-14 19:40:20 -0800 (Mon, 14 Jan 2008) | 3 lines

  Better (?) text describing the lack of guarantees provided by qsize(),
  empty() and full().
........
  r59970 | raymond.hettinger | 2008-01-14 21:39:59 -0800 (Mon, 14 Jan 2008) | 1 line

  Temporarily revert 59967 until GC can be added.
........
  r59971 | raymond.hettinger | 2008-01-14 21:46:43 -0800 (Mon, 14 Jan 2008) | 1 line

  Small grammar nit
........
  r59972 | georg.brandl | 2008-01-14 22:55:56 -0800 (Mon, 14 Jan 2008) | 2 lines

  Typo.
........
  r59973 | georg.brandl | 2008-01-14 22:58:15 -0800 (Mon, 14 Jan 2008) | 2 lines

  Remove duplicate entry.
........
  r59974 | jeffrey.yasskin | 2008-01-14 23:46:24 -0800 (Mon, 14 Jan 2008) | 12 lines

  Add rational.Rational as an implementation of numbers.Rational with infinite
  precision. This has been discussed at http://bugs.python.org/issue1682. It's
  useful primarily for teaching, but it also demonstrates how to implement a
  member of the numeric tower, including fallbacks for mixed-mode arithmetic.

  I expect to write a couple more patches in this area:
   * Rational.from_decimal()
   * Rational.trim/approximate() (maybe with different names)
   * Maybe remove the parentheses from Rational.__str__()
   * Maybe rename one of the Rational classes
   * Maybe make Rational('3/2') work.
........
  r59978 | andrew.kuchling | 2008-01-15 06:38:05 -0800 (Tue, 15 Jan 2008) | 8 lines

  Restore description of sys.dont_write_bytecode.

  The duplication is intentional -- this paragraph is in a section
  describing additions to the sys module, and there's a later section
  that mentions the switch.  I think most people scan the what's-new and
  don't read it in detail, so a bit of duplication is OK.
........
  r59984 | guido.van.rossum | 2008-01-15 09:59:29 -0800 (Tue, 15 Jan 2008) | 3 lines

  Issue #1786 (by myself): pdb should use its own stdin/stdout around an
  exec call and when creating a recursive instance.
........

1 files changed, 22 insertions, 3 deletions

diff --git a/Lib/numbers.py b/Lib/numbers.py
index b1c0697..7c73fa7 100644
--- a/Lib/numbers.py
+++ b/Lib/numbers.py
@@ -5,6 +5,7 @@
 
 TODO: Fill out more detailed documentation on the operators."""
 
+from __future__ import division
 from abc import ABCMeta, abstractmethod, abstractproperty
 
 __all__ = ["Number", "Exact", "Inexact",
@@ -61,7 +62,8 @@ class Complex(Number):
     def __complex__(self):
         """Return a builtin complex instance. Called for complex(self)."""
 
-    def __bool__(self):
+    # Will be __bool__ in 3.0.
+    def __nonzero__(self):
         """True if self != 0. Called for bool(self)."""
         return self != 0
 
@@ -96,6 +98,7 @@ class Complex(Number):
         """-self"""
         raise NotImplementedError
 
+    @abstractmethod
     def __pos__(self):
         """+self"""
         raise NotImplementedError
@@ -120,12 +123,28 @@ class Complex(Number):
 
     @abstractmethod
     def __div__(self, other):
-        """self / other; should promote to float or complex when necessary."""
+        """self / other without __future__ division
+
+        May promote to float.
+        """
         raise NotImplementedError
 
     @abstractmethod
     def __rdiv__(self, other):
-        """other / self"""
+        """other / self without __future__ division"""
+        raise NotImplementedError
+
+    @abstractmethod
+    def __truediv__(self, other):
+        """self / other with __future__ division.
+
+        Should promote to float when necessary.
+        """
+        raise NotImplementedError
+
+    @abstractmethod
+    def __rtruediv__(self, other):
+        """other / self with __future__ division"""
         raise NotImplementedError
 
     @abstractmethod