fix strange namedfile issues

spyder/plugins/profiler/widgets/main_widget.py

@@ -359,21 +359,20 @@ def show_profile_buffer(self, prof_buffer):
         """Show profile file."""
         if not prof_buffer:
             return
-        temp = tempfile.NamedTemporaryFile(delete=False)
-        temp.write(prof_buffer)
-        filename = temp.name
-        # Release the file (Important on Window to avoid file locks)
-        temp.close()
-        # Open again
-        self.load_data(filename)
-        # Delete
-        os.unlink(filename)
+        with tempfile.TemporaryDirectory() as dir:
+            filename = os.path.join(dir, "tem.prof")
+            with open(filename, "bw") as f:
+                f.write(prof_buffer)
+            self.load_data(filename)
         # Show
         self.show_tree()
         self.sig_display_requested.emit(self)
 
     def load_data(self, profdatafile):
         """Load profiler data saved by profile/cProfile module"""
+        if not os.path.isfile(profdatafile):
+            self.profdata = None
+            return
         import pstats
         # Fixes spyder-ide/spyder#6220.
         try: