Update status of various items.
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pep-3100.txt
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pep-3100.txt
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@ -64,19 +64,19 @@ Core language
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=============
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* True division becomes default behavior [#pep238]_ [done]
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* ``exec`` as a statement is not worth it -- make it a function
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* ``exec`` as a statement is not worth it -- make it a function [done]
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* (Maybe) add optional declarations for static typing [11]_
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* Support only new-style classes; classic classes will be gone [1]_ [done]
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* Replace ``print`` by a function [16]_
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* Use ``except E1, E2, E3 as err:`` if you want the error variable. [3]_
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* ``None`` becomes a keyword [4]_ (What about ``True``, ``False``?)
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* ``...`` to become a general expression element [24]_
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* ``as`` becomes a keyword [5]_ (probably in 2.6 already) [done]
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* ``...`` to become a general expression element [24]_ [done]
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* ``as`` becomes a keyword [5]_ (starting in 2.6 already) [done]
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* Have list comprehensions be syntactic sugar for passing an
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equivalent generator expression to ``list()``; as a consequence the
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loop variable will no longer be exposed [12]_
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* Comparisons other than ``==`` and ``!=`` between disparate types
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will raise an exception unless explicitly supported by the type [6]_
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will raise an exception unless explicitly supported by the type [6]_ [done]
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* Exceptions might grow an attribute to store the traceback [13]_
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* floats will not be acceptable as arguments in place of ints for operations
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where floats are inadvertantly accepted (PyArg_ParseTuple() i & l formats)
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@ -91,7 +91,7 @@ Core language
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- List comprehensions will require parentheses around the iterables.
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This will make list comprehensions more similar to generator comprehensions.
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[x for x in 1, 2] will need to be: [x for x in (1, 2)]
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- Lambdas will have to be parenthesized [23]_
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- Lambdas may have to be parenthesized [23]_
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* Builtin module init function names (PyMODINIT_FUNC) will be prefixed
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with _Py (or Py). Currently they aren't namespace safe since the names
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@ -101,7 +101,7 @@ Core language
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and semantics is evil.
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* Attributes on functions of the form ``func_whatever`` will be renamed
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``__whatever__`` [25]_
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* Set literals and comprehensions [27]_ [28]_
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* Set literals and comprehensions [27]_ [28]_ [done]
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{x} means set([x]); {x, y} means set([x, y]).
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{F(x) for x in S if P(x)} means set(F(x) for x in S if P(x)).
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NB. {range(x)} means set([range(x)]), NOT set(range(x)).
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@ -119,8 +119,9 @@ To be removed:
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* Might drop unbound methods? [7]_
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* METH_OLDARGS
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* WITH_CYCLE_GC [done]
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* __getslice__, __setslice__, __delslice__ [17]_
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* Remove slice opcodes and use slice objects
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* __getslice__, __setslice__, __delslice__ [17]_;
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remove slice opcodes and use slice objects.
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[Thomas Wouters is working on this in a branch]
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* C APIs (see code):
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PyFloat_AsString, PyFloat_AsReprString, PyFloat_AsStringEx,
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PySequence_In, PyEval_EvalFrame, PyEval_CallObject,
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@ -134,6 +135,7 @@ Atomic Types
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* Remove distinction between int and long types [1]_
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(int may become an abstract base type, with short and long subtypes.)
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[MvL is working on this in the int_unification branch]
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* Make all strings be Unicode, and have a separate bytes() type [1]_
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The new string type will be called 'str'.
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* Return iterators instead of lists where appropriate for atomic type methods
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@ -145,7 +147,8 @@ Atomic Types
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To be removed:
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* ``basestring.find()`` and ``basestring.rfind()``; use ``basestring.index()``
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or ``basestring.rindex()`` in a try/except block??? [15]_
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or ``basestring.[r]partition()`` or
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or ``basestring.rindex()`` in a try/except block??? [15]_
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* ``file.xreadlines()`` method [#file-object]_ [done]
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* ``dict.setdefault()``? [22]_
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* ``dict.has_key()`` method [done]
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@ -155,7 +158,7 @@ Built-in Namespace
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==================
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* Make built-ins return an iterator where appropriate (e.g. ``range()``,
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``zip()``, etc.)
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``zip()``, etc.) [zip is done; Neil Norwitz has a patch for range()]
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* Relevant functions should consume iterators (e.g. ``min()``,
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``max()``) [They already do, since 2.2.]
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* Introduce ``trunc()``, which would call the ``__trunc__()`` method on its
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@ -174,9 +177,10 @@ To be removed:
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* ``input()``: use ``eval(sys.stdin.readline())`` [2]_
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* ``intern()``, ``id()``: put in ``sys`` [2]_
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* ``map()``, ``filter()``: use list comprehensions instead??? [1]_, [9]_
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* ``reduce()``: write a loop instead [2]_, [9]_
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* ``raw_input()``: use ``sys.stdin.readline()`` [2]_
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* ``xrange()``: use ``range()`` instead [1]_
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(Actually these can stay.)
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* ``reduce()``: write a loop instead [2]_, [9]_ [done]
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* ``raw_input()``: use ``sys.stdin.readline()`` ??? [2]_
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* ``xrange()``: use ``range()`` instead [1]_ [See range() above]
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Standard library
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