Message 69461 - Python tracker

➜

This issue tracker has been migrated to GitHub, and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

Author	kaizhu
Recipients	collinwinter, kaizhu, loewis, pitrou
Date	2008-07-09.11:27:49
SpamBayes Score	5.3895707e-05
Marked as misclassified	No
Message-id	<1215602873.21.0.42924575475.issue3238@psf.upfronthosting.co.za>
In-reply-to

Content
update: these 3k language features have been tested to work in python 2.5.2 w/ the backported opcodes pep3104 Access to Names in Outer Scopes pep3105 Make print a function pep3111 Simple input built-in in Python 3000 pep3113 Removal of Tuple Parameter Unpacking pep3114 Renaming iterator.next() to .__next__() pep3115 Metaclasses in Python 3000 pep3127 Integer Literal Support and Syntax pep3129 Class Decorators pep3132 Extended Iterable Unpacking had to backport __build_class__ in bltinmodule.c to get metaclasses working. u can go to http://www-rcf.usc.edu/~kaizhu/work/py3to2/ for more info install/usage summary: 1. build python 2.5.2 w/ patched ceval.c & bltinmodule.c 2. download scripts: py3to2.py & _py3to2.py 3. ln -s python3.0 python3k 4. run python2.5 & type 'import py3to2' # it will automatically run the pep tests the script provides 3 functions similar to those in __builtin__: compile_py3k, exec_py3k, eval_py3k right now, working on backporting pep 3102 & 3107 - annotations & keyword-only arguments. apparently appending the co_kwonlyargcount attr to codeobject in 2.5.2 doesn't seem to affect the build

update: these 3k language features have been tested to work in python
2.5.2 w/ the backported opcodes

   pep3104  Access to Names in Outer Scopes
   pep3105  Make print a function
   pep3111  Simple input built-in in Python 3000
   pep3113  Removal of Tuple Parameter Unpacking
   pep3114  Renaming iterator.next() to .__next__()
   pep3115  Metaclasses in Python 3000
   pep3127  Integer Literal Support and Syntax
   pep3129  Class Decorators
   pep3132  Extended Iterable Unpacking

had to backport __build_class__ in bltinmodule.c to get metaclasses
working.  u can go to http://www-rcf.usc.edu/~kaizhu/work/py3to2/ for
more info

install/usage summary:
  1. build python 2.5.2 w/ patched ceval.c & bltinmodule.c
  2. download scripts: py3to2.py & _py3to2.py
  3. ln -s python3.0 python3k
  4. run python2.5 & type 'import py3to2' # it will automatically run
the pep tests

the script provides 3 functions similar to those in __builtin__:
compile_py3k, exec_py3k, eval_py3k

right now, working on backporting pep 3102 & 3107 - annotations &
keyword-only arguments.  apparently appending the co_kwonlyargcount attr
to codeobject in 2.5.2 doesn't seem to affect the build

History
Date	User	Action	Args
2008-07-09 11:27:53	kaizhu	set	spambayes_score: 5.38957e-05 -> 5.3895707e-05 recipients: + kaizhu, loewis, collinwinter, pitrou
2008-07-09 11:27:53	kaizhu	set	spambayes_score: 5.38957e-05 -> 5.38957e-05 messageid: <1215602873.21.0.42924575475.issue3238@psf.upfronthosting.co.za>
2008-07-09 11:27:51	kaizhu	link	issue3238 messages
2008-07-09 11:27:50	kaizhu	create