Only run test_curses when sys.__stdout__ is a tty. This eliminates the

last false positive when running regrtest with -j.

Lib/test/test_curses.py

@@ -276,6 +276,8 @@ if __name__ == '__main__':
     curses.wrapper(main)
     unit_tests()
 else:
+    if not sys.__stdout__.isatty():
+        raise unittest.SkipTest("sys.__stdout__ is not a tty")
     # testing setupterm() inside initscr/endwin
     # causes terminal breakage
     curses.setupterm(fd=sys.__stdout__.fileno())