[Python-Dev] Patch for an initial support of bytes filename in Python3

[Guido van Rossum]

On Tue, Sep 30, 2008 at 10:59 AM,  <glyph at divmod.com> wrote:
> On 02:32 pm, guido at python.org wrote:
>> If 2.6 weren't pretty much released already I'd ask to add
>> os.getcwdb() there, as an alias for os.getcwd(), and add a 2to3 fixer
>> that converts os.getcwdu() to os.getcwd(), leaves os.getcwd() alone
>> (benefit of the doubt) and leaves os.getcwdb() alone as well (a strong
>> indication the user meant to get bytes in the 3.x version of their
>> code. (Similar to using bytes instead of str in 2.6 even though they
>> mean the same thing there -- they will be properly separated in 3.x.)
>
> In the absence of a 2.6 getcwdb, perhaps the fixer could just drop the
> "benefit of the doubt" case?  It could always be added to 2.7, and the
> parity release of 2to3 could have a --2.7 switch that would modify the
> behavior of this and other fixers.

I'm not sure what you're proposing. *My* proposal is that 2to3 changes
os.getcwdu() calls to os.getcwd() and leaves os.getcwd() calls alone
-- there's no way to tell whether os.getcwdb() would be a better
match, and for portable code, it won't be (since os.getcwdb() is a
Unix-only thing).

-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)