This is a network issue (or pypi blacklisting). Note that the command

    ./sage -optional

just makes the list of optional packages. It does not install anything.

To have more information on the command just do

    ./sage -optional --help

And it is a bad idea to install all optional packages as some of them just break Sage.

Vincent

Le 29/12/2016 à 10:37, Fjordforsk A/S a écrit :
When running sage -optional I get this:

./sage -optional
[package]...............................[latest version] ([version])

/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='mercurial' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='brian' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='trac' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='beautifulsoup' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='pyflakes' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='pybtex' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='guppy' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='mpi4py' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='nibabel' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='pyopenssl' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='sqlalchemy' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))
/home/sem/SageMath/sage-7.4/local/lib/python2.7/site-packages/sage/misc/package.py:121:
UserWarning: failed to fetch the version of pkg='biopython' at
https://pypi.python.org/pypi
  warnings.warn("failed to fetch the version of pkg={!r} at {}".format(pkg,
pypi_url))



how can I bypass this and install all packages through one command?

Thanks


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