get ncurses_version at runtime from curses_version()

python · ambv · May 4, 2024 · Oct 11, 2023 · Oct 11, 2023 · Oct 24, 2023
commit bb2c852c59157b533bd57d192d068d2b0684a5cf
diff --git a/Modules/_cursesmodule.c b/Modules/_cursesmodule.c
@@ -4570,17 +4570,24 @@ make_ncurses_version(PyTypeObject *type)
     if (ncurses_version == NULL) {
         return NULL;
     }
-
+    const char *str = curses_version();
+    unsigned long major = 0, minor = 0, patch = 0;
+    if (!str || sscanf(str, "%*[^0-9]%lu.%lu.%lu", &major, &minor, &patch) < 3) {
+        // Fallback to header version, which cannot be that wrong
+        major = NCURSES_VERSION_MAJOR;
+        minor = NCURSES_VERSION_MINOR;
+        patch = NCURSES_VERSION_PATCH;
+    }
 #define SetIntItem(flag) \
     PyStructSequence_SET_ITEM(ncurses_version, pos++, PyLong_FromLong(flag)); \
     if (PyErr_Occurred()) { \
         Py_CLEAR(ncurses_version); \
         return NULL; \
     }
 
-    SetIntItem(NCURSES_VERSION_MAJOR)
-    SetIntItem(NCURSES_VERSION_MINOR)
-    SetIntItem(NCURSES_VERSION_PATCH)
+    SetIntItem(major)
+    SetIntItem(minor)
+    SetIntItem(patch)
 #undef SetIntItem
 
     return ncurses_version;