It may be that you the conda env is not activated correctly? Please try `conda activate sage-dev` before running the pip command. Also, as Dima said, I would advice to use the latest development branch and the env file for Python 3.13.
If all of this is not working, please post the meson-log.txt file (path is towards the end of your screenshot) On Thursday, March 5, 2026 at 4:12:23 PM UTC+1 [email protected] wrote: > On March 5, 2026 6:42:15 AM CST, James <[email protected]> wrote: > >> I started setting up sage and as reference followed the >> https://doc-develop--sagemath.netlify.app/html/en/developer/walkthrough.html, >> >> I am using environment-3.11.yml >> > > we don't support Python 3.11 any more, and environment-3.11.yml is gone > from our betas -- which you should use for development, anyway. > > > > >> but after I ran pip install --no-build-isolation -e . it fails saying >> cpython is missing then I also installed that but after then like each >> missing installation I do again fails (kinda chain of missing packages), so >> do we require to install them manually, ig it should be installed from >> environment-3.11.yml ? I thought to take help for this before manually >> building using steps of make configure, ./configure and make. I am >> attaching the error log image this is of cpython even after installing then >> it gives of other missing package. >> [image: image.png] >> Thank you >> James >> >> -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/sage-devel/8241d82e-ea0d-49b3-a479-9ffc3f3b5f49n%40googlegroups.com.
