Diff for "2to3" - Python Wiki

Differences between revisions 1 and 6 (spanning 5 versions)

2to3 is a tool that automatically translates 2.x code to 3.x code. The code is located at http://svn.python.org/view/sandbox/trunk/2to3. At the moment, it is principally maintained by BenjaminPeterson.

Since Python 2.6, it has been included in the standard library. http://docs.python.org/library/2to3.html

Here are some project ideas:

* Some people have expressed interest in adding directives in the source to 2to3. So you could write:

 # 2to3: strings-are-bytes
 x = "hi"
 # 2to3: end

and that would get translated to

x = b"hi"

* Last year there was a project to add confidence rankings to 2to3 changes. People could configure them to a certain level and deal with low confidence refactoring manually (or interactively). For some reason, the project was never finished. If you want to find more out about that, I suggest you contact the student or his mentor, Collin Winter.

* Some people have expressed an interest in seeing a 3to2 tool which would make 3.x code valid for ~2.5. Work is in progress, see 3to2

-  ⇤ ← Revision 1 as of 2009-03-22 02:39:23 → 
  Size: 954
  Editor: BenjaminPeterson
  Comment: make a page with some ideas from improvement
+   ← Revision 6 as of 2010-09-24 04:22:01 → ⇥
  Size: 1089
  Editor: ppp118-209-23-175
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-to3 is a tool that automatically translates 2.x code to 3.x code. The code is located at http://svn.python.org/view/sandbox/trunk/2to3. Here are some project ideas:
+to3 is a tool that automatically translates 2.x code to 3.x code. The code is located at http://svn.python.org/view/sandbox/trunk/2to3. At the moment, it is principally maintained by BenjaminPeterson.

Since Python 2.6, it has been included in the standard library. http://docs.python.org/library/2to3.html

Here are some project ideas:
-Line 4:
+Line 8:
+ {{{
 # 2to3: strings-are-bytes
 x = "hi"
 # 2to3: end
 }}}
 and that would get translated to
-Line 5:
+Line 15:
-  # 2to3: strings-are-bytes
  x = "hi"
  # 2to3: end
+ {{{x = b"hi"}}}
-Line 9:
+Line 17:
-  and that would get translated to
+* Last year there was a project to add confidence rankings to 2to3 changes. People could configure them to a certain level and deal with low confidence refactoring manually (or interactively). For some reason, the project was never finished. If you want to find more out about that, I suggest you contact [[http://isnomore.net/2to3|the student]] or his mentor, Collin Winter.
-Line 11:
+Line 19:
-  x = b"hi"

- Last year there was a project to add confidence rankings to 2to3 changes. People could configure them to a certain level and deal with low confidence refactoring manually (or interactively). For some reason, the project was never finished. If you want to find more out about that, I suggest you contact [http://isnomore.net/2to3|the student] or his mentor, Collin Winter.

- Some people have expressed an interest in seeing a 3to2 tool which would make 3.x code valid for ~2.5. This is in the nonexistent stage, so you'd have to start writing fixers from scratch.
+* Some people have expressed an interest in seeing a 3to2 tool which would make 3.x code valid for ~2.5. Work is in progress, see [[3to2]]

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