meson_python build failure: missing tar.gz on sage github?

[Janmenjaya Panda]

Hello,
I got the following error while (running 'make') building sage from the forked repo of the source code (This branch (develop) is up to date with sagemath/sage:develop).

[meson_python-0.15.0] Thread model: posix
[meson_python-0.15.0] gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.2)
[meson_python-0.15.0] ****************************************************
[meson_python-0.15.0] Package 'meson_python' is currently not installed
[meson_python-0.15.0] No legacy uninstaller found for 'meson_python'; nothing to do
[meson_python-0.15.0] Installing meson_python-0.15.0
[meson_python-0.15.0] Processing /home/janmenjaya/open-source/sage/local/var/lib/sage/venv-python3.11.1/var/tmp/sage/build/meson_python-0.15.0/src
[meson_python-0.15.0]   Preparing metadata (pyproject.toml): started
[meson_python-0.15.0]   Running command Preparing metadata (pyproject.toml)
[meson_python-0.15.0]
[meson_python-0.15.0]   ('\x1b[31m',)meson-python: error: Could not find meson version 0.63.3 or newer, found .
[meson_python-0.15.0]   error: subprocess-exited-with-error
[meson_python-0.15.0]  
[meson_python-0.15.0]   × Preparing metadata (pyproject.toml) did not run successfully.
[meson_python-0.15.0]   │ exit code: 1
[meson_python-0.15.0]   ╰─> See above for output.
[meson_python-0.15.0]  
[meson_python-0.15.0]   note: This error originates from a subprocess, and is likely not a problem with pip.
[meson_python-0.15.0]   full command: /home/janmenjaya/open-source/sage/local/var/lib/sage/venv-python3.11.1/bin/python3 /home/janmenjaya/open-source/sage/local/var/lib/sage/venv-python3.11.1/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py prepare_metadata_for_build_wheel /tmp/tmp4u8eg6fa
[meson_python-0.15.0]   cwd: /home/janmenjaya/open-source/sage/local/var/lib/sage/venv-python3.11.1/var/tmp/sage/build/meson_python-0.15.0/src
[meson_python-0.15.0]   Preparing metadata (pyproject.toml): finished with status 'error'
[meson_python-0.15.0] error: metadata-generation-failed
[meson_python-0.15.0]
[meson_python-0.15.0] × Encountered error while generating package metadata.
[meson_python-0.15.0] ╰─> See above for output.
[meson_python-0.15.0]
[meson_python-0.15.0] note: This is an issue with the package mentioned above, not pip.
[meson_python-0.15.0] hint: See above for details.
[meson_python-0.15.0] ********************************************************************************************************************************************
[meson_python-0.15.0] Error building a wheel for meson_python-0.15.0
[meson_python-0.15.0] ********************************************************************************************************************************************
[meson_python-0.15.0]
[meson_python-0.15.0] real 0m0.707s
[meson_python-0.15.0] user 0m0.643s
[meson_python-0.15.0] sys 0m0.067s
[meson_python-0.15.0] ************************************************************************
[meson_python-0.15.0] Error installing package meson_python-0.15.0
[meson_python-0.15.0] ************************************************************************
[meson_python-0.15.0] Please email sage-devel (http://groups.google.com/group/sage-devel)
[meson_python-0.15.0] explaining the problem and including the log files
[meson_python-0.15.0]   /home/janmenjaya/open-source/sage/logs/pkgs/meson_python-0.15.0.log
[meson_python-0.15.0] and
[meson_python-0.15.0]   /home/janmenjaya/open-source/sage/config.log
[meson_python-0.15.0] Describe your computer, operating system, etc.
[meson_python-0.15.0] If you want to try to fix the problem yourself, *don't* just cd to
[meson_python-0.15.0] /home/janmenjaya/open-source/sage/local/var/lib/sage/venv-python3.11.1/var/tmp/sage/build/meson_python-0.15.0 and type 'make' or whatever is appropriate.
[meson_python-0.15.0] Instead, the following commands setup all environment variables
[meson_python-0.15.0] correctly and load a subshell for you to debug the error:
[meson_python-0.15.0]   (cd '/home/janmenjaya/open-source/sage/local/var/lib/sage/venv-python3.11.1/var/tmp/sage/build/meson_python-0.15.0' && '/home/janmenjaya/open-source/sage/sage' --buildsh)
[meson_python-0.15.0] When you are done debugging, you can type "exit" to leave the subshell.
[meson_python-0.15.0] ************************************************************************
make[4]: *** [Makefile:3387: meson_python-SAGE_VENV-no-deps] Error 1
make[3]: *** [Makefile:3387: /home/janmenjaya/open-source/sage/local/var/lib/sage/venv-python3.11.1/var/lib/sage/installed/meson_python-0.15.0] Error 2
make[2]: *** [Makefile:3017: all-start] Error 2
make[2]: Leaving directory '/home/janmenjaya/open-source/sage/build/make'

real 0m1.277s
user 0m1.154s
sys 0m0.138s
***************************************************************
Error building Sage.

The following package(s) may have failed to build (not necessarily
during this run of 'make all-start'):

* package:         meson_python-0.15.0
  last build time: Feb 13 13:08
  log file:        /home/janmenjaya/open-source/sage/logs/pkgs/meson_python-0.15.0.log

It is safe to delete any log files and build directories, but they
contain information that is helpful for debugging build problems.
WARNING: If you now run 'make' again, the build directory of the
same version of the package will, by default, be deleted. Set the
environment variable SAGE_KEEP_BUILT_SPKGS=yes to prevent this.

make[1]: *** [Makefile:40: all-start] Error 1
make[1]: Leaving directory '/home/janmenjaya/open-source/sage'
make: *** [Makefile:13: all] Error 2




I already have meson_python-0.15.0 installed in my system via pip install meson_python. Still, the above error is showing up. I have attached the log files. In the log file meson_python-0.15.0.log it says:

[Errno socket error] [Errno 404] Not Found: '//github.com/sagemath/sage/releases/download/10.3/meson_python-0.15.0.tar.gz'

I also checked with the previous conversation regarding the build failure due to meson_python; the reason there seemed different.

Thank you.

[Dima Pasechnik]

This error comes from meson, a good version, being found in ~/.local/bin/, but meson_python not liking it (maybe it check for meson in some way that's

not working in this case). You can look at the source of meson_python to find out the exact reason.

 

I already have meson_python-0.15.0 installed in my system via pip install meson_python. Still, the above error is showing up. I have attached the log files. In the log file meson_python-0.15.0.log it says:

[Errno socket error] [Errno 404] Not Found: '//github.com/sagemath/sage/releases/download/10.3/meson_python-0.15.0.tar.gz'

this is OK, it just tells you it could not find the tarball on a mirror, but in the end it is able to get it, surely.

 

I also checked with the previous conversation regarding the build failure due to meson_python; the reason there seemed different.

if you want to use pip-installed packages, and skip as much building of them as possible, you need

to first run ./configure --enable-system-site-packages

However this still by default won't look in ~/.local/ for packages.

There are extra settings which enable this, but I don't recall from the top of my head.

You can also do everything in a python venv, then ./configure --enable-system-site-packages will work without this extra hack I forgot.

HTH

Dima

Thank you.

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[Matthias Koeppe]

Check if your .local/bin was in your PATH when you ran "make".

(It is not enough for it to be in PATH when you run "configure".)

This information is in install.log; we cannot see this in the files that you attached.

[Janmenjaya Panda]

I thank both of you for your reply and support.

Yes, .local/bin was there in PATH.

I uninstalled meson (1.3.1), which was by default installed by pip install meson and installed an earlier version (0.63.3) and it worked. 

Thank you :-)

[Matthias Koeppe]

Thanks for the information.

There is something that we need to fix in our configure script. I'll take care of that in https://github.com/sagemath/sage/pull/37319