On Thursday, May 25, 2017 at 5:07:22 PM UTC-7, John H Palmieri wrote:
>
>
>
> On Thursday, May 25, 2017 at 4:40:01 PM UTC-7, Nils Bruin wrote:
>>
>> incidentally, it would be nice if we could equiv local/bin/ipython with 
>> the proper sage-python23 as well. Having a functional shell with an 
>> interactive debugger is a much nicer way to debug "import sage.all".
>>
>
> This is a design question for which we do not have an answer, or even any 
> real suggestions. Right now, SAGE_PYTHON3=yes is purely for building Sage, 
> not for running it, and maybe long-term it should get replaced with a 
> configure option anyway. Python conventions say that "python" should always 
> mean "Python 2", so if we want to follow those  conventions, then 
> local/bin/python should not be sage-python23.
>

I don't really care at this point. In the ugly_py3 style, it's just a good 
idea to equip local/bin/ipython with something that allows it to run 
python3 (so that sage -ipython works on a py3 build). Otherwise, there 
should be a local/bin/ipython3, and possibly sage -ipython can then select 
which exec to use. This is not about final design, it's about having the 
right tools to make an inventory of how badly broken sage/py3 is (and what 
fixes we might make).

I changed local/bin/ipython on my install, but it didn't show up in my git 
diff. Perhaps local/bin/ipython isn't tracked? does one make the change 
somewhere else? I was just looking for a way to include the change in 
Frederic's branch. With that branch, we're finally getting to a state where 
people can easily see what's wrong with Sage/Py3.



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