|
⇤ ← Revision 1 as of 2009-03-30 14:23:25
Size: 91
Comment: basic page
|
Size: 1102
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| 3to2 is a project to utilize lib2to3's infrastructure to convert cleaner 3.x code to 2.x. | 3to2 is a project to convert cleaner 3.x code to 2.x. 3to2 started as a project idea to reuse the 2to3/lib2to3 codebase for converting 3.x code to 2.x. This creates a new package, 'refactor', which supports lib2to3 and (non-existent) lib3to2. The following goals were targeted at the US [[http://us.pycon.org|PyCon]] 2009 sprint of Python Core: *retain lib2to3 API since it is in use (perhaps depracate it later) *build a base package 'refactor' and port lib2to3 to it *package refactor with a 3to2 script *tackle high-priority conversions The discussions at the sprint pointed to a handful of essential coversions to use as starting goals of 3to2: *from `__future__ import *` (2.6) *convert strings to `u''` or `b''`, appropriately *convert `print` functions (2.5 and earlier) *convert exceptions (2.5 and earlier) How far back into 2.x should 3to2 go? Conversions from 3.x to 2.4 and earlier have a lot more work to do than those of 3.x to 2.6 and later. `:-)` During the sprint, we approached tackling major conversions 3.x to 2.6, then 2.5, then 2.4, ... |
3to2 is a project to convert cleaner 3.x code to 2.x.
3to2 started as a project idea to reuse the 2to3/lib2to3 codebase for converting 3.x code to 2.x. This creates a new package, 'refactor', which supports lib2to3 and (non-existent) lib3to2.
The following goals were targeted at the US PyCon 2009 sprint of Python Core:
- retain lib2to3 API since it is in use (perhaps depracate it later)
- build a base package 'refactor' and port lib2to3 to it
- package refactor with a 3to2 script
- tackle high-priority conversions
The discussions at the sprint pointed to a handful of essential coversions to use as starting goals of 3to2:
from __future__ import * (2.6)
convert strings to u'' or b'', appropriately
convert print functions (2.5 and earlier)
- convert exceptions (2.5 and earlier)
How far back into 2.x should 3to2 go?
Conversions from 3.x to 2.4 and earlier have a lot more work to do than those of 3.x to 2.6 and later. :-) During the sprint, we approached tackling major conversions 3.x to 2.6, then 2.5, then 2.4, ...