We can't add --with-system-foo if foo doesn't have an
spkg-configure.m4 file.

Since this script can be invoked outside of a sage environment, we
mention the environment varia...

This avoids duplicating the check for ENABLE_SYSTEM_SITE_PACKAGES.

This converts some loops to the python style.

Plus a few pep8 details fixed

### :memo: Checkli...

Packages calling SAGE_PYTHON_PACKAGE_CHECK in spkg-configure.m4 are
python packages whose detect...

This variable is set in configure.ac when --enable-system-site-packages
was passed to ./configur...

We now set ENABLE_SYSTEM_SITE_PACKAGES=yes and call AC_SUBST on it
when --enable-system-site-pac...

this is a leftover from #35666 which was somehow created during a messy
manual merge.

This ...

* Fix a thinko in the iterator for TSSCPP
* make plane partitions hashable
* avoid rational ...

using the `needs` directive in `posets` folder

### :memo: Checklist

- [x] The title is con...

This is fixing a few minor details in quadratic forms, about

- unused variables found by py...

taking care of unused variables found by `pylint` in combinat

### :memo: Checklist

- [x] T...

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- upgrade msolve to 0.5.0
- add support for Gröbner bases over ℚ to the msolve interface

Fi...

Resolves #30296

URL: https://github.com/sagemath/sage/pull/36098
Reported by: Michael O...

There are current cython bindings to NTL methods which are not made
available to polynomial ...

findstat.org supports a new collection, ordered set partitions. This
has to be reflected by...

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On MacOS with sagemath 10.1.rc0, I have the following doctest error in
`src/sage/geometry/po...

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Corrects a typo in the cython definition of Polynomial_ZZ_pEX
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Currently the c...

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Fix the memory leak when computing the outer sqrt in `sqrt(sqrt(2))`, as
reported on sage de...

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Due to changes in the output of `hilb` in singular 4.3.2p4 (it now
outputs a polynomial inst...

This PR carries the work and hopes to fix #28292.

All the codes in this PR were/are impleme...

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Extended `dominating_sets` to be able to generate Minimum Connected
Dominating Sets using co...

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### :books: Description

Update gc package to the latest stable upstream release.

More deta...

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Sage isn't ready for ipython-8.11 yet because it requires a newer
prompt_toolkit (https://github...

Maybe Linter likes me now

The pkg_resources module is now imported with,

import pkg_resources

instead of

import set...