Add support for Python up to 3.12

PyMI already worked for Python up to 3.11 version.

For Python 3.12, the deprecated PyUnicode_GetSize has been removed
completely and needed to be updated with PyUnicode_GetLength.

.github/workflows/pymi-cd.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       max-parallel: 100
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: ["3.10", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v1

PyMI/Utils.cpp

@@ -120,7 +120,7 @@ void GetIndexOrName(PyObject *item, std::wstring& name, Py_ssize_t& i)
 #endif
     if (PyUnicode_Check(item))
     {
-        Py_ssize_t len = PyUnicode_GetSize(item) + 1;
+        Py_ssize_t len = PyUnicode_GetLength(item) + 1;
         wchar_t* w = new wchar_t[len];
 
         if (PyUnicode_AsWideChar((PYUNICODEASVARCHARARG1TYPE*)item, w, len) < 0)
@@ -143,7 +143,7 @@ void GetIndexOrName(PyObject *item, std::wstring& name, Py_ssize_t& i)
 
 std::wstring Py2WString(PyObject* pyValue)
 {
-    auto len = PyUnicode_GetSize(pyValue) + 1;
+    auto len = PyUnicode_GetLength(pyValue) + 1;
     wchar_t* w = new wchar_t[len];
 
     if (PyUnicode_AsWideChar((PYUNICODEASVARCHARARG1TYPE*)pyValue, w, len) < 0)

setup.cfg

@@ -15,6 +15,11 @@ classifier =
     Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
+    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
     Environment :: Win32 (MS Windows)
     Intended Audience :: Developers
     Intended Audience :: System Administrators