[PATCH] py3: have an utility function to return string

[Martijn Pieters]

On 16 September 2016 at 11:09, Pierre-Yves David
<pierre-yves.david at ens-lyon.org> wrote:
>>> +    return word.decode(sys.getfilesystemencoding())
>>
>>
>> Can we assume 'word' was encoded in file-system codec?

No, this is being used for *source code literals*, so
getfilesystemencoding is the wrong codec here. Probably the function
should be given an encoding='utf8' default instead, so you can specify
a different codec.

>
> On what kind of string is this going to be used. If we intend to us this on
> Mercurial internal identifier only, we can probably assume (and actually,
> enforce) ascii to keep things simple.

If this is only going to be used for Python identifiers in strings
(e.g. the string(s) __slots__ accepts) then ASCII is fine, especially
because we need to keep the code working in both Python 2 and 3 and 2
only accepts ASCII for identifiers.


-- 
Martijn Pieters