[Python-checkins] python/nondist/peps pep-3000.txt,1.15,1.16
bcannon at users.sourceforge.net
bcannon at users.sourceforge.net
Thu Apr 28 20:57:43 CEST 2005
Update of /cvsroot/python/python/nondist/peps
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv14436
Modified Files:
pep-3000.txt
Log Message:
Fill out some references for existing points.
Index: pep-3000.txt
===================================================================
RCS file: /cvsroot/python/python/nondist/peps/pep-3000.txt,v
retrieving revision 1.15
retrieving revision 1.16
diff -u -d -r1.15 -r1.16
--- pep-3000.txt 15 Mar 2005 19:43:34 -0000 1.15
+++ pep-3000.txt 28 Apr 2005 18:57:40 -0000 1.16
@@ -41,23 +41,14 @@
Core language
=============
-* Remove distinction between int and long types. [1]_
-* True division becomes default behavior
-* Make all strings be Unicode, and have a separate bytes() type. [1]_
+* Remove distinction between int and long types [1]_
+* True division becomes default behavior [10]_
+* 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
-
- - ``dict.keys()``, ``.values()``, ``.items()``
- - ``range()``, ``zip()``
-
+* Add optional declarations for static typing [11]_
+* Support only new-style classes; classic classes will be gone [1]_
+* Return iterators instead of lists where appropriate for atomic type methods
+ (e.g. ``dict.keys()``, ``dict.values()``, ``dict.items()``, etc.)
* 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,
@@ -67,13 +58,13 @@
* ``as`` becomes a keyword [5]_
* Have list comprehensions be syntactic sugar for passing an
equivalent generator expression to ``list()``; as a consequence the
- loop variable will no longer be exposed.
+ loop variable will no longer be exposed [12]_
* Comparisons other than ``==`` and ``!=`` between disparate types
will raise an exception unless explicitly supported by the type [6]_
To be removed:
-* The ``lambda`` statement: use nested functions [1]_, [9]_
+* The ``lambda`` statement: use nested or named functions [1]_, [9]_
* String exceptions: use instances of an Exception class [2]_
* ```x```: use ``repr(x)`` [2]_
* The ``<>`` operator: use ``!=`` instead [3]_
@@ -83,11 +74,12 @@
Built-ins
=========
-* Make ``range()`` return an iterator
+* Make built-ins return an iterator where appropriate (e.g. ``range()``,
+ ``zip()``, etc.)
* Relevant functions should consume iterators (e.g. ``min()``,
``max()``)
* Introduce ``trunc()``, which would call the ``__trunc__()`` method on its
- argument; suggested use if for objects like float where calling ``__int__()``
+ argument; suggested use is for objects like float where calling ``__int__()``
has data loss, but an integral representation is still desired [8]_
To be removed:
@@ -148,6 +140,15 @@
.. [9] Guido's blog ("The fate of reduce() in Python 3000")
http://www.artima.com/weblogs/viewpost.jsp?thread=98196
+.. [10] PEP 238 ("Changing the Division Operator")
+ http://www.python.org/peps/pep-0238.html
+
+.. [11] Guido's blog ("Python Optional Typechecking Redux")
+ http://www.artima.com/weblogs/viewpost.jsp?thread=89161
+
+.. [12] PEP 289 ("Generator Expressions")
+ http://www.python.org/peps/pep-0289.html
+
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