Add PEP 3000

pep-0000.txt

@@ -57,6 +57,7 @@ Index by Category
  I   291  Backward Compatibility for Standard Library  Norwitz
  I   306  How to Change Python's Grammar               Hudson
  I   320  Python 2.4 Release Schedule                  Warsaw
+ I  3000  Python 3.0 Plans                             Kuchling, Cannon
 
  Accepted PEPs (accepted; may not be implemented yet)
 
@@ -357,6 +358,7 @@ Numerical Index
  S   331  Locale-Independent Float/String conversions  Reis
  SR  666  Reject Foolish Indentation                   Creighton
  S   754  IEEE 754 Floating Point Special Values       Warnes
+ I  3000  Python 3.0 Plans                             Kuchling, Cannon
 
 
 Key
@@ -383,6 +385,7 @@ Owners
     Batista, Facundo         facundo@taniquetil.com.ar
     Baxter, Anthony          anthony@interlink.com.au
     Bellman, Thomas          bellman+pep-divmod@lysator.liu.se
+    Cannon, Brett            drifty@alum.berkeley.edu
     Carlson, Josiah          jcarlson@uci.edu
     Carroll, W Isaac         icarroll@pobox.com
     Cole, Dave               djc@object-craft.com.au

pep-3000.txt

@@ -0,0 +1,131 @@
+PEP: 3000
+Title: Python 3.0 Plans
+Version: $Revision$
+Last-Modified: $Date$
+Author: A.M. Kuchling <amk@amk.ca>, 
+        Brett Cannon <drifty@alum.berkeley.edu>
+Status: Draft
+Type: Informational
+Content-Type: text/x-rst
+Created: 20-Aug-2004
+Post-History: 
+
+
+Abstract
+========
+
+This PEP describes the changes currently envisioned in Python 3.0, a
+hypothetical future release of Python that can break backwards
+compatibility with the existing body of Python code.  
+
+The list of features included in this document is subject to change
+and isn't binding on the Python development community; features may be
+added, removed, and modified at any time.  The purpose of this list is
+to focus our language development effort on changes that are steps to
+3.0, and to encourage people to invent ways to smooth the transition.
+
+This document is not a wish-list that anyone can extend.  While there
+are two authors of this PEP, we're just supplying the text; the
+decisions for which changes are listed in this document are made by
+Guido van Rossum, who has chosen them as goals for Python 3.0.  
+
+General goals
+=============
+
+A general goal is to reduce feature duplication by removing old ways
+of doing things.  A general principle of the design will be that one
+obvious way of doing something is enough. [1]_
+
+
+Core language
+=============
+
+* Remove distinction between int and long types. [1]_
+* Make all strings be Unicode, and have a separate bytes() type. [1]_
+* `exec` as a statement is not worth it -- make it a function
+* Add optional declarations for static typing
+* Support only new-style classes; classic classes will be gone. [1]_
+* Add a 'with' statement::
+
+        with self:
+            .foo = [1, 2, 3]
+            .bar(4, .foo)
+
+* Return iterators instead of lists
+* `d.keys()`, `.values()`, `.items()`
+* `range()`, `zip()` 
+* Replace `print` by a function: `write(x,y,z)`, `writeln(x,y,z)` [2]_
+* Do something so you can catch multiple exceptions using `except E1,
+  E2, E3:`. Maybe use `except E1, E2, E3 as err:` if you want the error
+  variable? [3]_
+
+To be removed:
+
+* The `lambda` statement [1]_
+* String exceptions [2]_
+* ``\`x\```: use `repr(x)` [2]_
+
+
+Built-ins
+=========
+
+Changes:
+
+* make `range()` return an iterator 
+* Relevant functions should consume iterators (e.g. `min()`, `max()`)
+ 
+
+To be removed:
+
+* `apply()`: use `f(*args, **kw)` instead [2]_
+* `buffer()`: must die (use a bytes() type instead) [2]_
+* `callable()`: just call the object and catch the exception [2]_
+* `compile()`: put in `sys` (or perhaps in a module of its own) [2]_
+* `coerce()`: no longer needed [2]_
+* `execfile()`, `reload()`: use `exec()` [2]_
+* `input()`: use `eval(sys.stdin.readline())` [2]_
+* `intern()`, `id()`: put in `sys` [2]_
+* `map()`, `filter()`: use list comprehensions instead [1]_
+* `raw_input()`: use `sys.stdin.readline()` [2]_
+* `reduce()`: write a loop instead [2]_
+* `xrange()`: use `range()` instead [1]_
+
+
+Standard library
+================
+
+Reorganize the standard library into packages
+
+To be removed:
+
+* `string` and other deprecated modules [1]_
+* `sys.exc_type`: not thread-safe; use `sys.exc_info` [2]_
+
+
+References
+==========
+
+.. [1] PyCon 2003 State of the Union: 
+   http://www.python.org/doc/essays/ppt/pycon2003/pycon2003.ppt
+
+.. [2] Python Regrets: 
+   http://www.python.org/doc/essays/ppt/regrets/PythonRegrets.pdf
+
+.. [3] Python Wiki: 
+   http://www.python.org/moin/Python3.0
+
+
+Copyright
+=========
+
+This document has been placed in the public domain.
+
+
+
+..
+   Local Variables:
+   mode: indented-text
+   indent-tabs-mode: nil
+   sentence-end-double-space: t
+   fill-column: 70
+   End: