Fix various build issues (#261)

* Bump numpy/setuptools dependencies for Python 3.12

* Fix scheme_t -> Scheme_t in PyPoly.pyx

* update SEAL to most recent version

Modern versions of cmake commonly installed on, e.g., recent Ubuntu releases, no longer support the old version of cmake required by some of the previous SEAL version's dependencies. By updating to the most recent SEAL version, we resolve this (and get some other bugfixes and improvements)

* Increase Pyfhel version to 3.4.3

Author: AlexanderViand

Pyfhel/PyPoly.pyx

@@ -83,7 +83,7 @@ cdef class PyPoly:
 
     @_scheme.setter
     def _scheme(self, new_scheme):
-        if not isinstance(new_scheme, scheme_t):
+        if not isinstance(new_scheme, Scheme_t):
             raise TypeError("<Pyfhel ERROR> Scheme type of PyPoly must be scheme_t")        
         self._scheme = new_scheme
 

Pyfhel/__init__.py

@@ -7,4 +7,4 @@
 __name__   = "Pyfhel"
 __author__ = "Alberto Ibarrondo"
 
-__version__ = "3.4.2"
+__version__ = "3.4.3"

Pyfhel/backend/SEAL

@@ -14,7 +14,7 @@ Python library for Addition, Subtraction, Multiplication and Scalar Product over
 |--------------------------------------------|--------------------------------------------------------------------------------------------|
 | :flags: **Language**                       | Python (3.7+), with Cython and C++ (:warning: _requires a [C++17 compiler][3]_ :warning:.) |
 | :computer: **OS**                          | Linux, Windows & MacOS.                                                                    |
-| :1234: **Version** | 3.4.2 (stable)                                                                                                     |
+| :1234: **Version** | 3.4.3 (stable)                                                                                                     |
 | :books: **Docs**                           | In [readthedocs][1]!                                                                       |
 | :pencil2: **Demos/Examples**               | [In the docs][4] with the outputs, sources in the [`examples`][2] folder.                  |
 | :electric_plug: **Backends**               | [SEAL][5], [OpenFHE (WIP)][6]. Shipped alongside Pyfhel.                                   |

README.md

@@ -9,7 +9,7 @@
 # Pyfhel's core metadata
 [project]
 name = "Pyfhel"
-version = "3.4.2"
+version = "3.4.3"
 description = "Python for Homomorphic Encryption Libraries"
 readme = "README.md"
 requires-python = ">=3.7"
@@ -27,6 +27,8 @@ classifiers = [
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: Implementation :: CPython",
     "Development Status :: 5 - Production/Stable",
     "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
@@ -38,7 +40,7 @@ classifiers = [
 ]
 
 dependencies = [
-  "numpy>=1.21"
+  "numpy>=1.26"
 ]
 
 [project.optional-dependencies]
@@ -57,10 +59,10 @@ repository = "https://github.com/ibarrond/github"
 # Minimum requirements for the build system to execute.
 [build-system]
 requires = [
-  "setuptools<=60.9",
+  "setuptools>=64",
   "wheel",
   "cython>=3.0.0",
-  "numpy>=1.21",
+  "numpy>=1.26",
   "cmake>=3.15",
   "toml>=0.10"
 ]