Force profile output when triggered by --off. (#641)

* Force profile output when triggered by --off.

* Fixed for Windows.

scalene/scalene_profiler.py

@@ -951,9 +951,15 @@ def output_profile() -> bool:
             # be used by the parent process
             if "is_child" in json_output:
                 return True
-            if not Scalene.__output.output_file:
-                Scalene.__output.output_file = "/dev/stdout"
-            with open(Scalene.__output.output_file, "w") as f:
+            outfile = Scalene.__output.output_file
+            # If there was no output file specified, print to the console.
+            if not outfile:
+                if sys.platform == "win32":
+                    outfile = "CON"
+                else:
+                    outfile = "/dev/stdout"
+            # Write the JSON to the output file (or console).
+            with open(outfile, "w") as f:
                 f.write(
                     json.dumps(json_output, sort_keys=True, indent=4) + "\n"
                 )
@@ -1760,6 +1766,9 @@ def stop_signal_handler(
         for pid in Scalene.child_pids:
             Scalene.__orig_kill(pid, Scalene.__signals.stop_profiling_signal)
         Scalene.stop()
+        # Output the profile if `--outfile` was set to a file.
+        if Scalene.__output.output_file:
+            Scalene.output_profile()
 
     @staticmethod
     def disable_signals(retry: bool = True) -> None: