Trac #30767: Update Python to 3.10.x

Python 3.10 was released 2021-10-04, the current version is 3.10.2,
released 2022-01-14.

Upstream PR:
- python/cpython#30005

To test, use:
{{{
./configure --without-system-python3 --enable-download-from-upstream-url
}}}

Necessary changes to the library should go on #30766 (Support Python
3.10)

Related:

- [https://www.python.org/dev/peps/pep-0619/ PEP 619 -- Python 3.10
Release Schedule]
- [https://docs.python.org/3.10/whatsnew/3.10.html What's new in Python
3.10]
- #30766: Support Python 3.10
- #30589: Test ticket: Python 3.9.0
- #30384: Adopt the “time window-based” policy for support of Python
versions from NEP 29

URL: https://trac.sagemath.org/30767
Reported by: slelievre
Ticket author(s): Matthias Koeppe
Reviewer(s): François Bissey

build/pkgs/python3/checksums.ini

@@ -1,5 +1,5 @@
 tarball=Python-VERSION.tar.xz
-sha1=6274e5631c520d75bf1f0a046640fd3996fe99f0
-md5=11d12076311563252a995201248d17e5
-cksum=2273440860
+sha1=e618946549cca1eb0d6d4cdf516003fec3975003
+md5=14e8c22458ed7779a1957b26cde01db9
+cksum=1118621485
 upstream_url=https://www.python.org/ftp/python/VERSION/Python-VERSION.tar.xz

build/pkgs/python3/package-version.txt

@@ -1 +1 @@
-3.9.9
+3.10.2

build/pkgs/python3/patches/0001-bpo-22699-Allow-compiling-on-debian-ubuntu-with-a-di.patch

@@ -12,20 +12,20 @@ patch than given
  1 file changed, 18 insertions(+), 1 deletion(-)
 
 diff --git a/setup.py b/setup.py
-index 8fb8ea5c47..783d20bdcd 100644
+index 554699608d..d5bbeb90d5 100644
 --- a/setup.py
 +++ b/setup.py
-@@ -663,9 +663,30 @@ def add_multiarch_paths(self):
+@@ -667,9 +667,30 @@ def check_extension_import(self, ext):
+     def add_multiarch_paths(self):
          # Debian/Ubuntu multiarch support.
          # https://wiki.ubuntu.com/MultiarchSpec
-         cc = sysconfig.get_config_var('CC')
 -        tmpfile = os.path.join(self.build_temp, 'multiarch')
          if not os.path.exists(self.build_temp):
              os.makedirs(self.build_temp)
 +
 +        tmpfile_sysroot = os.path.join(self.build_temp, 'sysroot')
 +        ret_sysroot = run_command(
-+            '%s -print-sysroot > %s 2> /dev/null' % (cc, tmpfile_sysroot))
++            '%s -print-sysroot > %s 2> /dev/null' % (CC, tmpfile_sysroot))
 +
 +        try:
 +            if ret_sysroot == 0:
@@ -35,17 +35,17 @@ index 8fb8ea5c47..783d20bdcd 100644
 +                    # the compiler from debian/ubuntu
 +                    if sysroot not in ['', '/']:
 +                        add_dir_to_list(self.compiler.library_dirs,
-+                            sysroot + '/usr/lib')
++                            sysroot + '/usr/lib/')
 +                        add_dir_to_list(self.compiler.include_dirs,
-+                            sysroot + '/usr/include')
++                            sysroot + '/usr/include/')
 +                        return
 +        finally:
 +            os.unlink(tmpfile_sysroot)
 +
 +        tmpfile = os.path.join(self.build_temp, 'multiarch')
 +
          ret = run_command(
-             '%s -print-multiarch > %s 2> /dev/null' % (cc, tmpfile))
+             '%s -print-multiarch > %s 2> /dev/null' % (CC, tmpfile))
          multiarch_path_component = ''
 --- a/setup.py    2021-09-28 23:49:53.193868987 -0700
 +++ b/setup.py    2021-09-28 23:50:13.554098642 -0700

build/pkgs/python3/spkg-configure.m4

@@ -1,7 +1,7 @@
 SAGE_SPKG_CONFIGURE([python3], [
    m4_pushdef([MIN_VERSION],               [3.7.0])
    m4_pushdef([MIN_NONDEPRECATED_VERSION], [3.7.0])
-   m4_pushdef([LT_STABLE_VERSION],         [3.10.0])
+   m4_pushdef([LT_STABLE_VERSION],         [3.11.0])
    m4_pushdef([LT_VERSION],                [3.11.0])
    AC_ARG_WITH([python],
                [AS_HELP_STRING([--with-python=PYTHON3],