IIRC we have removed this variable lately, it was not documented, and so we
felt no need to do a deprecation.

The upstream ought to remove it.


On Mon, 16 Nov 2020, 15:29 John Cremona, <[email protected]> wrote:

> In a new install of version 9.2 (on ubuntu) I was using sage -pip
> install to install several packages which I need for LMFDB
> development.  All but one of these are normal pip packages which
> install fine, but one is not:  it is specified in the requirements.txt
> file as
> git+
> https://github.com/jwbober/conrey-dirichlet-characters.git@master#egg=dirichlet_conrey
>
> The installation of this (which has always worked fine up to now)
> bailed out with the error:
>
> Collecting dirichlet_conrey
>   Cloning https://github.com/jwbober/conrey-dirichlet-characters.git
> (to revision master) to /tmp/pip-install-r1tfb33j/dirichlet-conrey
>     ERROR: Command errored out with exit status 1:
>      command: /usr/local/sage/sage-9.2/local/bin/python3 -c 'import
> sys, setuptools, tokenize; sys.argv[0] =
> '"'"'/tmp/pip-install-r1tfb33j/dirichlet-conrey/setup.py'"'"';
>
> __file__='"'"'/tmp/pip-install-r1tfb33j/dirichlet-conrey/setup.py'"'"';f=getattr(tokenize,
> '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"',
> '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))'
> egg_info --egg-base /tmp/pip-pip-egg-info-xvkfdork
>          cwd: /tmp/pip-install-r1tfb33j/dirichlet-conrey/
>     Complete output (1 lines):
>         ERROR: The environment variable SAGE_PYTHON_VERSION must be
> defined.
>
> I worked out that after putting
>
> export SAGE_PYTHON_VERSION=3
>
> and rerunning the pip install, all was well.  Should Sage's
> environment (e.g. what you see typing env after sage -sh)  have this
> set?
>
> John
>
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