On Mon, Dec 04 2017, Daniel Kahn Gillmor wrote:

> On Sun 2017-12-03 15:35:04 +0200, Tomi Ollila wrote:
>> On Thu, Nov 30 2017, Daniel Kahn Gillmor wrote:
>>
>>> On Thu 2017-11-30 04:40:39 -0500, Daniel Kahn Gillmor wrote:
>>>> python2 is going to be deprecated, and python3-sphinx is available all
>>>> the way back to oldoldstable.  let's use the more modern version.
>>>> ---
>>>>  debian/control | 2 +-
>>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>>
>>>> diff --git a/debian/control b/debian/control
>>>> index 20b8a2db..3a624fdc 100644
>>>> --- a/debian/control
>>>> +++ b/debian/control
>>>> @@ -18,7 +18,7 @@ Build-Depends:
>>>>   python3-all (>= 3.1.2-7~),
>>>>   dh-python,
>>>>   dh-elpa (>= 1.3),
>>>> - python-sphinx (>= 1.0),
>>>> + python3-sphinx,
>>>>   ruby, ruby-dev (>>1:1.9.3~),
>>>>   emacs25-nox | emacs25 (>=25~) | emacs25-lucid (>=25~) |
>>>>   emacs24-nox | emacs24 (>=24~) | emacs24-lucid (>=24~) |
>>>
>>> hm, on further reflection, this one is specifically problematic because
>>> of the use of:
>>>
>>>     ${python} -m sphinx.writers.manpage
>>>
>>> in ./configure, used to test for the presence of the sphinx module.
>>>
>>> This can be fixed by preferring python3 here:
>>>
>>> --- a/configure
>>> +++ b/configure
>>> @@ -557,7 +557,7 @@ fi
>>>  printf "Checking for python... "
>>>  have_python=0
>>>  
>>> -for name in ${PYTHON} python python2 python3; do
>>> +for name in ${PYTHON} python3 python python2; do
>>
>>>      if command -v $name > /dev/null; then
>>>         have_python=1
>>>         python=$name
>>>
>>> any thoughts or preferences on this?
>>
>> I'd like this change. I was going to suggest "${PYTHON}" there
>> but perhaps if one sets e.g.
>>
>> PYTHON='/usr/local/bin/python3 -B -E -u'
>>
>> The above would still work (I'd say this is potentially more useful
>> than supporting whitespace in paths).
>
> does it work?  i think the -B -E -u will all be tried as possible python
> implementations separately, no?  and $python itself will just get set to
> /usr/local/bin/python3 with the arguments dropped :(

Ahh, you're right. Alternative would be to check whether "${PYTHON-}" is
a nonempty string and use that...

Tomi

>
> 0 dkg@alice:~$ x="a b c"
> 0 dkg@alice:~$ for y in ${x} d e; do printf ':%s\n' "$y"; done
> :a
> :b
> :c
> :d
> :e
> 0 dkg@alice:~$ 
>
> While i think this doesn't support Tomi's extended use case, i still
> think it's the right direction to move in.
>
> Does anyone have any objection to the preference order change above?  Is
> there any reason we should be preferring python 2 to python3 as we move
> forward?
>
>         --dkg
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