bpo-40207: Expose NCURSES_EXT_FUNCS and only run selected tests under it

Author: isidentical

Doc/library/curses.rst

@@ -1319,6 +1319,11 @@ The :mod:`curses` module defines the following data members:
    :const:`OK` upon success.
 
 
+.. data:: NCURSES_EXT_FUNCS
+
+   An integer object representing the current version of the ncurses extensions.
+
+
 .. data:: version
 
    A bytes object representing the current version of the module.  Also available as

Doc/whatsnew/3.9.rst

@@ -318,6 +318,9 @@ Add :func:`curses.get_escdelay`, :func:`curses.set_escdelay`,
 :func:`curses.get_tabsize`, and :func:`curses.set_tabsize` functions.
 (Contributed by Anthony Sottile in :issue:`38312`.)
 
+Add :data:`~curses.NCURSES_EXT_FUNCS` constant.
+(Contributed by Batuhan Taskaya in :issue:`40207`)
+
 datetime
 --------
 The :meth:`~datetime.date.isocalendar()` of :class:`datetime.date`

Lib/test/test_curses.py

@@ -261,10 +261,12 @@ def test_module_funcs(self):
         curses.putp(b'abc')
         curses.qiflush()
         curses.raw() ; curses.raw(1)
-        curses.set_escdelay(25)
-        self.assertEqual(curses.get_escdelay(), 25)
-        curses.set_tabsize(4)
-        self.assertEqual(curses.get_tabsize(), 4)
+        if getattr(curses, "set_escdelay"):
+            curses.set_escdelay(25)
+            self.assertEqual(curses.get_escdelay(), 25)
+        if getattr(curses, "set_tabsize"):
+            curses.set_tabsize(4)
+            self.assertEqual(curses.get_tabsize(), 4)
         if hasattr(curses, 'setsyx'):
             curses.setsyx(5,5)
         curses.tigetflag('hc')

Misc/NEWS.d/next/Library/2020-04-06-18-56-16.bpo-40207.VWhrYL.rst

@@ -0,0 +1 @@
+Expose ``NCURSES_EXT_FUNCS`` under :mod:`curses`. Patch by Batuhan Taskaya.

Modules/_cursesmodule.c

@@ -4617,6 +4617,9 @@ PyInit__curses(void)
         PyErr_Clear();
     }
 #endif /* NCURSES_VERSION */
+#ifdef NCURSES_EXT_FUNCS
+    SetDictInt("NCURSES_EXT_FUNCS", NCURSES_EXT_FUNCS);
+#endif
 
     SetDictInt("ERR", ERR);
     SetDictInt("OK", OK);