The toolbox now can handle 0 arguments

demo_toolbox.py

@@ -10,11 +10,12 @@ if __name__ == '__main__':
         formatter_class=argparse.ArgumentDefaultsHelpFormatter
     )
     
-    parser.add_argument("datasets_root", type=Path, help= \
+    parser.add_argument("-d", "--datasets_root", type=Path, help= \
         "Path to the directory containing your datasets. See toolbox/__init__.py for a list of "
         "supported datasets. You can add your own data by created a directory named UserAudio "
         "in your datasets root. Supported formats are mp3, flac, wav and m4a. Each speaker should "
-        "be inside a directory, e.g. <datasets_root>/UserAudio/speaker_01/audio_01.wav.")
+        "be inside a directory, e.g. <datasets_root>/UserAudio/speaker_01/audio_01.wav.",
+                        default=None)
     parser.add_argument("-e", "--enc_models_dir", type=Path, default="encoder/saved_models", 
                         help="Directory containing saved encoder models")
     parser.add_argument("-s", "--syn_models_dir", type=Path, default="synthesizer/saved_models", 

toolbox/ui.py

@@ -210,14 +210,20 @@ class UI(QDialog):
                          random=True):
         # Select a random dataset
         if level <= 0:
-            datasets = [datasets_root.joinpath(d) for d in recognized_datasets]
-            datasets = [d.relative_to(datasets_root) for d in datasets if d.exists()]
-            self.browser_load_button.setDisabled(len(datasets) == 0)
-            if len(datasets) == 0:
-                print("Warning: you do not have any of the recognized datasets in %s.\n"
-                      "The recognized datasets are:\n\t%s\nFeel free to add your own. You can "
-                      "still use the toolbox by recording samples yourself." % 
-                      (datasets_root, "\n\t".join(recognized_datasets)), file=sys.stderr)
+            if datasets_root is not None:
+                datasets = [datasets_root.joinpath(d) for d in recognized_datasets]
+                datasets = [d.relative_to(datasets_root) for d in datasets if d.exists()]
+                self.browser_load_button.setDisabled(len(datasets) == 0)
+            if datasets_root is None or len(datasets) == 0:
+                # Yes I am proud of this two-liner
+                msg = "Warning: you d" + "id not pass a root directory for datasets as argument" \
+                    if datasets_root is None else "o not have any of the recognized datasets in %s" 
+                self.log(msg)
+                msg += ".\nThe recognized datasets are:\n\t%s\nFeel free to add your own. You " \
+                       "can still use the toolbox by recording samples yourself." % \
+                       ("\n\t".join(recognized_datasets))
+                print(msg, file=sys.stderr)
+                
                 self.random_utterance_button.setDisabled(True)
                 self.random_speaker_button.setDisabled(True)
                 self.random_dataset_button.setDisabled(True)