gh-126313: Fix a crash in curses.napms() due to incorrect error handling (GH-126351)

diff --git a/Misc/NEWS.d/next/Library/2024-11-03-09-42-42.gh-issue-126313.EFP6Dl.rst b/Misc/NEWS.d/next/Library/2024-11-03-09-42-42.gh-issue-126313.EFP6Dl.rst
new file mode 100644 (file)
index 0000000..dad348d
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-11-03-09-42-42.gh-issue-126313.EFP6Dl.rst
@@ -0,0 +1,2 @@
+Fix an issue in :func:`curses.napms` when :func:`curses.initscr` has not yet
+been called. Patch by Bénédikt Tran.

diff --git a/Modules/_cursesmodule.c b/Modules/_cursesmodule.c
index 27d5df08de933ee005d0c60d20f45e0a8b83a55c..040ffa81153ebe2ba1d06c7d5543279255e2d335 100644 (file)
--- a/Modules/_cursesmodule.c
+++ b/Modules/_cursesmodule.c
@@ -3815,8 +3815,11 @@ static int
 _curses_napms_impl(PyObject *module, int ms)
 /*[clinic end generated code: output=5f292a6a724491bd input=c6d6e01f2f1df9f7]*/
 {
-    PyCursesStatefulInitialised(module);
-
+    if (!_PyCursesStatefulCheckFunction(module,
+                                        curses_initscr_called,
+                                        "initscr")) {
+        return -1;
+    }
     return napms(ms);
 }