building documentation: says I should use a sage shell, but i am

[Matthew Lancellotti]

I am trying to build documentation for my own sage project on my sage server.  I get the error

$ sage -sh -c "make html"

sphinx-build -b html -d build/doctrees   source build/html

Running Sphinx v1.6.3

making output directory...

Exception occurred:

  File "conf.py", line 30, in <module>

RuntimeError: to build the documentation you need to be inside a Sage shell (run first the command 'sage -sh' in a shell

The full traceback has been saved in /tmp/sphinx-err-ajlNRU.log, if you want to report the issue to the developers.

Please also report this if it was a user error, so that a better error message can be provided next time.

A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!

Setting permissions of DOT_SAGE directory so only you can read and write it.

make: *** [html] Error 1

This is a very surprising error!  It works fine on my local machine, but not on my server.  My Travis server is running the following script to build the documentation (ignore the dashes):

- uname -a

- DIR_REPO=$(pwd)

- DIR_INSTALL="${DIR_REPO}"/temp-install-sage

- mkdir "${DIR_INSTALL}"

- cd "${DIR_INSTALL}"

- FILE_NAME="sage-8.2-Ubuntu_16.04-x86_64.tar.bz2"

- wget -q http://mirrors.mit.edu/sage/linux/64bit/"${FILE_NAME}"

- tar -xf "${FILE_NAME}"

- sudo ln -s "${DIR_INSTALL}"/SageMath/sage /usr/local/bin/sage

- sage --version

- sage --version

- sage -pip install sphinxcontrib-websupport

- cd "${DIR_REPO}"/docs

- sage -sh -c "make html"

Happy to provide more info if you need it!

[Matthew Lancellotti]

I am able to get around the first error by commenting out the try catch loop in conf.py:

# try:

#    import sage.all

# except ImportError:

#    raise RuntimeError("to build the documentation you need to be inside a Sage shell (run first the command 'sage -sh' in a shell")

Then sphinx runs, but hits the following error:

ImportError: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.23' not found (required by /home/travis/build/MareoRaft/k_combinat_for_sage/temp-install-sage/SageMath/local/lib/../lib64/libquadmath.so.0)

any ideas of how to install GLIBC_2.23?

[Matthew Lancellotti]

Every closer, I am now installing the http://mirrors.mit.edu/sage/linux/64bit/sage-7.6-Ubuntu_14.04-x86_64.tar.bz2 version of sage, which seems like the right thing to do because my server is running Ubuntu_14.04, but now I run into the following error:

ImportError: libgfortran.so.3: cannot open shared object file: No such file or directory

I think this could be as easy as stealing the appropriate file from another computer and putting it into the correct location on my Travis server.

[slelievre]

Mon 2018-06-18 03:54:05 UTC, Matthew Lancellotti:

> Every closer, I am now installing the

> http://mirrors.mit.edu/sage/linux/64bit/sage-7.6-Ubuntu_14.04-x86_64.tar.bz2

> version of sage, which seems like the right thing to do because my

> server is running Ubuntu_14.04, but now I run into the following error:

>

>   ImportError: libgfortran.so.3: cannot open shared object file:

>   No such file or directory

>

> I think this could be as easy as stealing the appropriate file from another

> computer and putting it into the correct location on my Travis server.

The installation instructions recommend some prerequisites,

whether you install from source or from binaries.

http://doc.sagemath.org/html/en/installation/index.html

In particular, you need gfortran to be installed, and under

Ubuntu you can achieve that by running in a terminal:

    sudo apt install gfortran

[Jeroen Demeyer]

On 2018-06-18 05:54, Matthew Lancellotti wrote:
> sage-7.6-Ubuntu_14.04-x86_64.tar.bz2

Do you have a good reason to use an outdated version of Sage? Version
8.2 has been released.

[Jeroen Demeyer]

On 2018-06-18 04:22, Matthew Lancellotti wrote:
> I am able to get around the first error by commenting out the try catch
> loop in conf.py:

Which conf.py file are you talking about?