Building 10.7 from source fails on macOS 15.5 arm64

David DeMark

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Oct 22, 2025, 3:08:50 PM (9 days ago) Oct 22

to sage-support

Hi all, reposting from sage-devel since I didn't get any responses there...

Hi, I've run into some difficulty installing sage from source via cloning from github and following the installation guide in the readme. Specifically, when running make in step 14, I get a python error saying that the culprit is in sage_bootstrap/download/transfer.py in the line "opener = urllib.FancyURLopener()"

Some cursory research indicates this might be a python2/python3 versioning issue?

System info and terminal output below. Log files attached.

System info:

david@FD9N5QF71Y
----------------
OS: macOS Sequoia 15.5 arm64
Host: MacBook Air (M2, 2022)
Kernel: Darwin 24.5.0
Uptime: 3 days, 5 hours, 2 mins
Packages: 200 (brew), 5 (brew-cask)
Shell: zsh 5.9
Display (Color LCD): 2940x1912 @ 2x in 14", 60]
DE: Aqua
WM: Quartz Compositor 278.4.7
WM Theme: Multicolor (Dark)
Font: .AppleSystemUIFont [System], Helvetica []
Cursor: Fill - Black, Outline - White (32px)
Terminal: tmux 3.5a
CPU: Apple M2 (8) @ 3.50 GHz
GPU: Apple M2 (8) @ 1.40 GHz [Integrated]
Memory: 12.75 GiB / 16.00 GiB (80%)
Swap: 1.58 GiB / 3.00 GiB (53%)
Disk (/): 137.19 GiB / 228.27 GiB (60%) - apfs]
Local IP (en0): 192.168.3.133/24
Battery (bq40z651): 71% (9 hours, 20 mins rema]
Locale: en_US.UTF-8

My terminal output from running make:

david@FD9N5QF71Y sage % make
/Library/Developer/CommandLineTools/usr/bin/make build/make/Makefile --stop
make[1]: `build/make/Makefile' is up to date.
build/bin/sage-logger \
"cd build/make && ./install 'base-toolchain'" logs/install.log
*** ALL ENVIRONMENT VARIABLES BEFORE BUILD: ***
__CF_USER_TEXT_ENCODING=0x1F5:0x0:0x0
__CFBundleIdentifier=com.googlecode.iterm2
_=/usr/bin/env
ACLOCAL_PATH=
COLORFGBG=15;0
COLORTERM=truecolor
COMMAND_MODE=unix2003
CPATH=/opt/homebrew/opt/primesieve/include:/opt/homebrew/opt/bdw-gc/include:/opt/homebrew/opt/libpng/include:/opt/homebrew/opt/ntl/include:/opt/homebrew/opt/bzip2/include:/opt/homebrew/opt/readline/include:/opt/homebrew/include:/opt/homebrew/opt/primesieve/include:/opt/homebrew/opt/bdw-gc/include:/opt/homebrew/opt/libpng/include:/opt/homebrew/opt/ntl/include:/opt/homebrew/opt/bzip2/include:/opt/homebrew/opt/readline/include:/opt/homebrew/include
CVXOPT_SUITESPARSE_INC_DIR=/opt/homebrew/include/suitesparse
CVXOPT_SUITESPARSE_LIB_DIR=/opt/homebrew/lib
DBUS_SESSION_BUS_ADDRESS=unix:path=
HOME=/Users/david
HOMEBREW_CELLAR=/opt/homebrew/Cellar
HOMEBREW_PREFIX=/opt/homebrew
HOMEBREW_REPOSITORY=/opt/homebrew
INFOPATH=/opt/homebrew/share/info:/opt/homebrew/share/info:
ITERM_PROFILE=Default
ITERM_SESSION_ID=w0t0p0:D07654F1-4896-43C9-BD75-F26059297394
LANG=en_US.UTF-8
LC_TERMINAL_VERSION=3.6.1
LC_TERMINAL=iTerm2
LIBRARY_PATH=/opt/homebrew/opt/primesieve/lib:/opt/homebrew/opt/bdw-gc/lib:/opt/homebrew/opt/libpng/lib:/opt/homebrew/opt/ntl/lib:/opt/homebrew/opt/bzip2/lib:/opt/homebrew/opt/readline/lib:/opt/homebrew/lib:/opt/homebrew/opt/primesieve/lib:/opt/homebrew/opt/bdw-gc/lib:/opt/homebrew/opt/libpng/lib:/opt/homebrew/opt/ntl/lib:/opt/homebrew/opt/bzip2/lib:/opt/homebrew/opt/readline/lib:/opt/homebrew/lib
LOGNAME=david
MAKE=make
MAKEFLAGS=l 8.5 - --jobserver-fds=3,4 -j V=1
MAKELEVEL=1
MANPATH=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/share/man:/Library/Developer/CommandLineTools/usr/share/man:/Library/Developer/CommandLineTools/Toolchains/XcodeDefault.xctoolchain/usr/share/man:
MFLAGS=-l 8.5 - --jobserver-fds=3,4 -j
OLDPWD=/Users/david/sage/sage
PATH=/Users/david/sage/sage/build/bin:/Users/david/sage/sage/src/bin:/Users/david/sage/sage/local/bin:/opt/homebrew/opt/texinfo/bin:/opt/homebrew/opt/bzip2/bin:/opt/homebrew/opt/texinfo/bin:/opt/homebrew/opt/bzip2/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/TeX/texbin:/Applications/iTerm.app/Contents/Resources/utilities
PKG_CONFIG_PATH=/opt/homebrew/opt/zlib/lib/pkgconfig:/opt/homebrew/opt/sqlite/lib/pkgconfig:/opt/homebrew/opt/readline/lib/pkgconfig:/opt/homebrew/opt/openssl/lib/pkgconfig:/opt/homebrew/opt/openblas/lib/pkgconfig:/opt/homebrew/lib/pkgconfig:/opt/homebrew/opt/zlib/lib/pkgconfig:/opt/homebrew/opt/sqlite/lib/pkgconfig:/opt/homebrew/opt/readline/lib/pkgconfig:/opt/homebrew/opt/openssl/lib/pkgconfig:/opt/homebrew/opt/openblas/lib/pkgconfig:/opt/homebrew/lib/pkgconfig:
PWD=/Users/david/sage/sage/build/make
PYTHONPATH=/Users/david/sage/sage/local
SAGE_ENV_CONFIG_SOURCED=1
SAGE_LOCAL=/Users/david/sage/sage/local
SAGE_LOGFILE=logs/install.log
SAGE_LOGS=/Users/david/sage/sage/logs/pkgs
SAGE_NUM_THREADS_PARALLEL=2
SAGE_NUM_THREADS=2
SAGE_ORIG_PATH_SET=True
SAGE_ORIG_PATH=/opt/homebrew/opt/texinfo/bin:/opt/homebrew/opt/bzip2/bin:/opt/homebrew/opt/texinfo/bin:/opt/homebrew/opt/bzip2/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/TeX/texbin:/Applications/iTerm.app/Contents/Resources/utilities
SAGE_PKGCONFIG=/Users/david/sage/sage/local/lib/pkgconfig
SAGE_ROOT=/Users/david/sage/sage
SAGE_SHARE=/Users/david/sage/sage/local/share
SAGE_SRC=/Users/david/sage/sage/src
SHELL=/bin/zsh
SHLVL=6
SSH_AUTH_SOCK=/private/tmp/com.apple.launchd.UoD9uhnA7B/Listeners
TERM_FEATURES=T3LrMSc7UUw9Ts3BFGsSyHNoSxF
TERM_PROGRAM_VERSION=3.5a
TERM_PROGRAM=tmux
TERM_SESSION_ID=w0t0p0:D07654F1-4896-43C9-BD75-F26059297394
TERM=tmux-256color
TERMINFO_DIRS=/Applications/iTerm.app/Contents/Resources/terminfo:/usr/share/terminfo
TMPDIR=/var/folders/sl/5g495s_91f3cbgpsj72ct9d00000gn/T/
TMUX_PANE=%8
TMUX=/private/tmp/tmux-501/default,1487,0
USER=david
XPC_FLAGS=0x0
XPC_SERVICE_NAME=0
***********************************************
make --no-print-directory toolchain
make[2]: Nothing to be done for `toolchain'.
Sage build/upgrade complete!
/Library/Developer/CommandLineTools/usr/bin/make all-start
/Library/Developer/CommandLineTools/usr/bin/make build/make/Makefile --stop
make[2]: `build/make/Makefile' is up to date.
build/bin/sage-logger \
"cd build/make && ./install 'all-start'" logs/install.log
*** ALL ENVIRONMENT VARIABLES BEFORE BUILD: ***
__CF_USER_TEXT_ENCODING=0x1F5:0x0:0x0
__CFBundleIdentifier=com.googlecode.iterm2
_=/usr/bin/env
ACLOCAL_PATH=
COLORFGBG=15;0
COLORTERM=truecolor
COMMAND_MODE=unix2003
CPATH=/opt/homebrew/opt/primesieve/include:/opt/homebrew/opt/bdw-gc/include:/opt/homebrew/opt/libpng/include:/opt/homebrew/opt/ntl/include:/opt/homebrew/opt/bzip2/include:/opt/homebrew/opt/readline/include:/opt/homebrew/include:/opt/homebrew/opt/primesieve/include:/opt/homebrew/opt/bdw-gc/include:/opt/homebrew/opt/libpng/include:/opt/homebrew/opt/ntl/include:/opt/homebrew/opt/bzip2/include:/opt/homebrew/opt/readline/include:/opt/homebrew/include
CVXOPT_SUITESPARSE_INC_DIR=/opt/homebrew/include/suitesparse
CVXOPT_SUITESPARSE_LIB_DIR=/opt/homebrew/lib
DBUS_SESSION_BUS_ADDRESS=unix:path=
HOME=/Users/david
HOMEBREW_CELLAR=/opt/homebrew/Cellar
HOMEBREW_PREFIX=/opt/homebrew
HOMEBREW_REPOSITORY=/opt/homebrew
INFOPATH=/opt/homebrew/share/info:/opt/homebrew/share/info:
ITERM_PROFILE=Default
ITERM_SESSION_ID=w0t0p0:D07654F1-4896-43C9-BD75-F26059297394
LANG=en_US.UTF-8
LC_TERMINAL_VERSION=3.6.1
LC_TERMINAL=iTerm2
LIBRARY_PATH=/opt/homebrew/opt/primesieve/lib:/opt/homebrew/opt/bdw-gc/lib:/opt/homebrew/opt/libpng/lib:/opt/homebrew/opt/ntl/lib:/opt/homebrew/opt/bzip2/lib:/opt/homebrew/opt/readline/lib:/opt/homebrew/lib:/opt/homebrew/opt/primesieve/lib:/opt/homebrew/opt/bdw-gc/lib:/opt/homebrew/opt/libpng/lib:/opt/homebrew/opt/ntl/lib:/opt/homebrew/opt/bzip2/lib:/opt/homebrew/opt/readline/lib:/opt/homebrew/lib
LOGNAME=david
MAKE=make
MAKEFLAGS=l 8.5 - --jobserver-fds=3,4 -j V=1
MAKELEVEL=2
MANPATH=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/share/man:/Library/Developer/CommandLineTools/usr/share/man:/Library/Developer/CommandLineTools/Toolchains/XcodeDefault.xctoolchain/usr/share/man:
MFLAGS=-l 8.5 - --jobserver-fds=3,4 -j
OLDPWD=/Users/david/sage/sage
PATH=/Users/david/sage/sage/build/bin:/Users/david/sage/sage/src/bin:/Users/david/sage/sage/local/bin:/opt/homebrew/opt/texinfo/bin:/opt/homebrew/opt/bzip2/bin:/opt/homebrew/opt/texinfo/bin:/opt/homebrew/opt/bzip2/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/TeX/texbin:/Applications/iTerm.app/Contents/Resources/utilities
PKG_CONFIG_PATH=/opt/homebrew/opt/zlib/lib/pkgconfig:/opt/homebrew/opt/sqlite/lib/pkgconfig:/opt/homebrew/opt/readline/lib/pkgconfig:/opt/homebrew/opt/openssl/lib/pkgconfig:/opt/homebrew/opt/openblas/lib/pkgconfig:/opt/homebrew/lib/pkgconfig:/opt/homebrew/opt/zlib/lib/pkgconfig:/opt/homebrew/opt/sqlite/lib/pkgconfig:/opt/homebrew/opt/readline/lib/pkgconfig:/opt/homebrew/opt/openssl/lib/pkgconfig:/opt/homebrew/opt/openblas/lib/pkgconfig:/opt/homebrew/lib/pkgconfig:
PWD=/Users/david/sage/sage/build/make
PYTHONPATH=/Users/david/sage/sage/local
SAGE_ENV_CONFIG_SOURCED=1
SAGE_LOCAL=/Users/david/sage/sage/local
SAGE_LOGFILE=logs/install.log
SAGE_LOGS=/Users/david/sage/sage/logs/pkgs
SAGE_NUM_THREADS_PARALLEL=2
SAGE_NUM_THREADS=2
SAGE_ORIG_PATH_SET=True
SAGE_ORIG_PATH=/opt/homebrew/opt/texinfo/bin:/opt/homebrew/opt/bzip2/bin:/opt/homebrew/opt/texinfo/bin:/opt/homebrew/opt/bzip2/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/TeX/texbin:/Applications/iTerm.app/Contents/Resources/utilities
SAGE_PKGCONFIG=/Users/david/sage/sage/local/lib/pkgconfig
SAGE_ROOT=/Users/david/sage/sage
SAGE_SHARE=/Users/david/sage/sage/local/share
SAGE_SRC=/Users/david/sage/sage/src
SHELL=/bin/zsh
SHLVL=6
SSH_AUTH_SOCK=/private/tmp/com.apple.launchd.UoD9uhnA7B/Listeners
TERM_FEATURES=T3LrMSc7UUw9Ts3BFGsSyHNoSxF
TERM_PROGRAM_VERSION=3.5a
TERM_PROGRAM=tmux
TERM_SESSION_ID=w0t0p0:D07654F1-4896-43C9-BD75-F26059297394
TERM=tmux-256color
TERMINFO_DIRS=/Applications/iTerm.app/Contents/Resources/terminfo:/usr/share/terminfo
TMPDIR=/var/folders/sl/5g495s_91f3cbgpsj72ct9d00000gn/T/
TMUX_PANE=%8
TMUX=/private/tmp/tmux-501/default,1487,0
USER=david
XPC_FLAGS=0x0
XPC_SERVICE_NAME=0
***********************************************
make --no-print-directory /Users/david/sage/sage/local/var/lib/sage/installed/.dummy
make[3]: `/Users/david/sage/sage/local/var/lib/sage/installed/.dummy' is up to date.
make --no-print-directory /Users/david/sage/sage/local/var/lib/sage/installed/.dummy
make[3]: `/Users/david/sage/sage/local/var/lib/sage/installed/.dummy' is up to date.
make --no-print-directory /Users/david/sage/sage/local/var/lib/sage/installed/.dummy
make[3]: `/Users/david/sage/sage/local/var/lib/sage/installed/.dummy' is up to date.
make --no-print-directory /Users/david/sage/sage/local/var/lib/sage/installed/.dummy
make[3]: `/Users/david/sage/sage/local/var/lib/sage/installed/.dummy' is up to date.
make --no-print-directory all-sage-docs all-sage
make --no-print-directory python3-SAGE_VENV-no-deps
if [ -d '/Users/david/sage/sage/local/var/lib/sage/venv-python3.12.5' ]; then sage-spkg-uninstall setuptools '/Users/david/sage/sage/local/var/lib/sage/venv-python3.12.5'; fi
[python3-3.12.5] Attempting to download package Python-3.12.5.tar.xz from mirrors
[python3-3.12.5] https://github.com/sagemath/sage/releases/download/10.7/Python-3.12.5.tar.xz
[python3-3.12.5] Traceback (most recent call last):
[python3-3.12.5] File "/Users/david/sage/sage/build/bin/sage-package", line 40, in <module>
[python3-3.12.5] run()
[python3-3.12.5] ~~~^^
[python3-3.12.5] File "/Users/david/sage/sage/build/bin/../sage_bootstrap/cmdline.py", line 538, in run
[python3-3.12.5] app.download_cls(*args.package_class,
[python3-3.12.5] ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] has_files=args.has_files, no_files=args.no_files,
[python3-3.12.5] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] exclude=args.exclude,
[python3-3.12.5] ^^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] allow_upstream=args.allow_upstream,
[python3-3.12.5] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] on_error=args.on_error)
[python3-3.12.5] ^^^^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] File "/Users/david/sage/sage/build/bin/../sage_bootstrap/app.py", line 337, in download_cls
[python3-3.12.5] pc.apply(download_with_args)
[python3-3.12.5] ~~~~~~~~^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] File "/Users/david/sage/sage/build/bin/../sage_bootstrap/expand_class.py", line 126, in apply
[python3-3.12.5] function(package_name, *args, **kwds)
[python3-3.12.5] ~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] File "/Users/david/sage/sage/build/bin/../sage_bootstrap/app.py", line 329, in download_with_args
[python3-3.12.5] self.download(package, allow_upstream=allow_upstream)
[python3-3.12.5] ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] File "/Users/david/sage/sage/build/bin/../sage_bootstrap/app.py", line 315, in download
[python3-3.12.5] package.tarball.download(allow_upstream=allow_upstream)
[python3-3.12.5] ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] File "/Users/david/sage/sage/build/bin/../sage_bootstrap/tarball.py", line 175, in download
[python3-3.12.5] Download(url, destination).run()
[python3-3.12.5] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
[python3-3.12.5] File "/Users/david/sage/sage/build/bin/../sage_bootstrap/download/transfer.py", line 123, in run
[python3-3.12.5] opener = urllib.FancyURLopener()
[python3-3.12.5] ^^^^^^^^^^^^^^^^^^^^^
[python3-3.12.5] AttributeError: module 'urllib.request' has no attribute 'FancyURLopener'
[python3-3.12.5] ************************************************************************
[python3-3.12.5] Error downloading tarball of python3
[python3-3.12.5] ************************************************************************
[python3-3.12.5] Please email sage-devel (http://groups.google.com/group/sage-devel)
[python3-3.12.5] explaining the problem and including the log files
[python3-3.12.5] /Users/david/sage/sage/logs/pkgs/python3-3.12.5.log
[python3-3.12.5] and
[python3-3.12.5] /Users/david/sage/sage/config.log
[python3-3.12.5] Describe your computer, operating system, etc.
[python3-3.12.5] ************************************************************************
make[4]: *** [python3-SAGE_VENV-no-deps] Error 1
make[3]: *** [/Users/david/sage/sage/local/var/lib/sage/venv-python3.12.5/var/lib/sage/installed/python3-3.12.5] Error 2
make[2]: *** [all-start] Error 2
***************************************************************
Error building Sage.

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

* package: python3-3.12.5
last build time: Oct 18 22:52
log file: /Users/david/sage/sage/logs/pkgs/python3-3.12.5.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]: *** [all-start] Error 1
make: *** [all] Error 2

python3-3.12.5.log

config.log

Dima Pasechnik

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Oct 23, 2025, 12:02:25 AM (9 days ago) Oct 23

to sage-s...@googlegroups.com

You'd apparently want to invoke ./configure in a different way:

./configure --with-python=python3.13

You instead used --with-system-python3, which, as you could see by

./configure -h | grep python3

does a different thing:

--with-system-python3={no|yes (default)|force (exit with an error if no usable version is found)}
detect and use an existing system python3

As a result, Sage was unable to find a good Python to use, tried to build its own, failed...

HTH

Dima

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David DeMark

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Oct 23, 2025, 12:41:27 AM (8 days ago) Oct 23

to sage-s...@googlegroups.com

Unless I am doing something wrong, this does not fix the problem... although, actually, though the error message is extremely similar, it now says that the error is downloading the gmp tarball rather than the python tarball.... Anyway, here are my new logs after running with your suggested configure option.

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config.log

gmp-6.3.0.log

David DeMark

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Oct 23, 2025, 12:41:42 AM (8 days ago) Oct 23

to sage-s...@googlegroups.com

Notably, sage does not seem to detect that I already have gmp 6.3.0 installed via brew...

Dima Pasechnik

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Oct 23, 2025, 1:24:29 AM (8 days ago) Oct 23

to sage-s...@googlegroups.com

Are you sure you gave gmp installed? Do you have /opt/homebrew/include/gmp.h ?

If yes, then you probably forgot to run

source .homebrew-build-env

(which in particular adds /opt/homebrew/include/ to CPATH)

It's not going to fly like this anyway, as your default python3, used for installation, is python3.14, and this is not supported in 10.7.

(from your log:

real_configure:9170: checking for Python
real_configure:9173: result: /opt/homebrew/opt/pyt...@3.14/bin/python3.14)

3.14 was released after 10.7 was released, so you really need to use a newer beta to have

a chance to built it from source with this configuration of pythons (the support of 3.14 is still not quite done).

https://github.com/sagemath/sage/pull/40888, merged in the latest beta, should allow you to use

python3.14 for building.

HTH,

Dima

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