Add model name validation for double spaces

school_project/__main__.py

@@ -395,16 +395,25 @@ def manage_testing(self, test_thread: threading.Thread) -> None:
     def save_model(self) -> None:
         """Save the model, save the model information to the database, then
            enter the home frame."""
-        model_name = self.save_model_name_entry.get()
+        model_name = self.save_model_name_entry.get().strip()
 
         # Check if model name is empty
-        if model_name == '':
+        if len(model_name) == 0:
             self.test_frame.model_status_label.configure(
                                            text="Model name can not be blank",
                                            fg='red'
                                            )
             return
 
+        # Check if model contains double spaces or greater
+        elif '  ' in model_name:
+            self.test_frame.model_status_label.configure(
+                                           text="Only single spaces are allowed",
+                                           fg='red'
+                                           )
+            return
+
+
         # Check if model name has already been taken
         dataset = self.dataset_option_menu_var.get().replace(" ", "_")
         sql = """