#12698: Add a warning not to install packages using the Sage shell
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Reporter: jdemeyer | Owner: leif
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.0
Component: scripts | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies: #11790
Stopgaps: |
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As we found out in
[http://trac.sagemath.org/sage_trac/ticket/12369#comment:189], you cannot
use the Sage shell to install Sage packages.
The problem is that `sage-env` has some conditional commands. One of
these commands is setting `LD_LIBRARY_PATH`. With #12405, only existing
directories are added to `LD_LIBRARY_PATH`. Upon entering the Sage shell,
`$SAGE_LOCAL/lib` might not exist yet, so that directory isn't added.
Since now `SAGE_ENV_SOURCED=1`, the variable `LD_LIBRARY_PATH` is not
changed anymore. Similarly, `PYTHONHOME` and `PYTHONPATH` are only set
when Python has been installed.
This ticket is about adding a warning when running `sage --sh`.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12698>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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