blob: 4963dcdac71fd94b1edaa5d9a0f46047e047e007 [file] [log] [blame]
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001+++++++++++
2Python News
3+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Guido van Rossum45aecf42006-03-15 04:58:47 +00007What's New in Python 3000?
8==========================
Thomas Wouters4d70c3d2006-06-08 14:42:34 +00009
Neal Norwitz4886cc32006-08-21 17:06:07 +000010*Release date: XX-XXX-200X*
11
12TO DO
13-----
14
Georg Brandl66a796e2006-12-19 20:50:34 +000015- See PEP 3000, 3100.
Neal Norwitz4886cc32006-08-21 17:06:07 +000016
17- Test merging certain changes from the 2.5 HEAD code.
18
19- Weed really old/weird stuff from the library.
20
21- Unify range() and xrange().
22
23- Revamp the dict API: keys(), values(), items() return iterators, etc.
24
25- Add the bytes type.
26
27- Rework the standard I/O library to use bytes for binary files.
28
29- Make strings all Unicode.
30
31- Get rid of classic class implementation.
32
33- Get rid of various compatibility-related flags (e.g. division flags).
34
Neal Norwitz378b2c92006-08-29 07:57:22 +000035
Neal Norwitz4886cc32006-08-21 17:06:07 +000036Core and Builtins
37-----------------
38
Georg Brandl66a796e2006-12-19 20:50:34 +000039- Moved intern() to sys.intern().
40
41- exec is now a function.
42
43- Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__.
Jack Diederich4dafcc42006-11-28 19:15:13 +000044
Neal Norwitz4886cc32006-08-21 17:06:07 +000045- Classic classes are a thing of the past. All classes are new style.
46
47- Exceptions *must* derive from BaseException.
48
49- Integer division always returns a float. The -Q option is no more.
50 All the following are gone:
51 * PyNumber_Divide and PyNumber_InPlaceDivide
52 * __div__, __rdiv__, and __idiv__
53 * nb_divide, nb_inplace_divide
54 * operator.div, operator.idiv, operator.__div__, operator.__idiv__
55 (Only __truediv__ and __floordiv__ remain, not sure how to handle them
56 if we want to re-use __div__ and friends. If we do, it will make
57 it harder to write code for both 2.x and 3.x.)
58
59- 'as' and 'with' are keywords.
60
61- Absolute import is the default behavior for 'import foo' etc.
62
Neal Norwitz378b2c92006-08-29 07:57:22 +000063- Removed support for syntax:
64 backticks (`x`), <>
65
Neal Norwitz4886cc32006-08-21 17:06:07 +000066- Removed these Python builtins:
67 apply(), coerce(), input(), raw_input()
68
Neal Norwitz378b2c92006-08-29 07:57:22 +000069- Removed these Python methods:
70 {}.has_key
71
Neal Norwitz4886cc32006-08-21 17:06:07 +000072- Removed these Python slots:
73 __coerce__, __div__, __idiv__, __rdiv__
74
75- Removed these attributes from Python modules:
76 * operator module: div, idiv, __div__, __idiv__
77
Neal Norwitz4886cc32006-08-21 17:06:07 +000078- Removed these C APIs:
Neal Norwitz378b2c92006-08-29 07:57:22 +000079 PyNumber_Coerce(), PyNumber_CoerceEx()
Neal Norwitz4886cc32006-08-21 17:06:07 +000080
81- Removed these C slots/fields:
82 nb_divide, nb_inplace_divide
83
84- Removed these macros:
85 staticforward, statichere, PyArg_GetInt, PyArg_NoArgs
86
87- Removed these typedefs:
88 intargfunc, intintargfunc, intobjargproc, intintobjargproc,
89 getreadbufferproc, getwritebufferproc, getsegcountproc, getcharbufferproc
90
91- Removed these opcodes:
Neal Norwitz378b2c92006-08-29 07:57:22 +000092 BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT
93
94- zip returns an iterator
95
96- Additions:
Georg Brandl66a796e2006-12-19 20:50:34 +000097 set literals, ellipsis literal
Neal Norwitz378b2c92006-08-29 07:57:22 +000098
Neal Norwitz4886cc32006-08-21 17:06:07 +000099
100Extension Modules
101-----------------
102
103Library
104-------
105
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000106Build
107-----
108
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000109C API
110-----
111
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000112Tests
113-----
114
Brett Cannonced04e02005-02-13 22:53:22 +0000115Documentation
116-------------
117
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000118Mac
119---
120
Hye-Shik Chang4e422812005-07-17 02:36:59 +0000121New platforms
122-------------
123
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000124Tools/Demos
125-----------
126
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000127**(For information about older versions, consult the HISTORY file.)**