On Wednesday, September 6, 2017 at 2:25:35 AM UTC-7, Ralf Hemmecke wrote:
>
> Since my settings using SAGE_PATH do seemingly not work anymore, I 
> looked for the use of SAGE_PATH in the sources. 
>
> I found in 7.6 some code 
>
>     if [ -n "$SAGE_PATH" ]; then 
>         PYTHONPATH="$SAGE_PATH:$PYTHONPATH" 
>     fi 
>
> but that was removed in commit 
>
> 22e470c2d6941875908f35ff3657843f1fe83f21 
>
> So it looks like SAGE_PATH is not used in 8.0 anymore although the 
> documentation still suggests its use. 
>
> http://doc.sagemath.org/html/en/reference/repl/environ.html 
>
> What exactly is the situation? 
>

For ref:

https://trac.sagemath.org/ticket/23614

It looks like PYTHONPATH isn't set at all with sage anymore, so you could 
set it yourself. As https://trac.sagemath.org/ticket/22608 explains, it 
looks like having PYTHONPATH set caused problems with differentiating 
between Py2 and Py3, though, so if you do set it yourself, you could get 
trouble from that.

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