print the desc if required parameters are not provided

TTS/bin/synthesize.py

@@ -150,6 +150,10 @@ def main():
 
     args = parser.parse_args()
 
+    # print the description if either text or list_models is not set
+    if args.text is None and not args.list_models:
+        parser.parse_args(['-h'])
+
     # load model manager
     path = Path(__file__).parent / "../.models.json"
     manager = ModelManager(path)

TTS/utils/arguments.py

@@ -10,7 +10,6 @@ import torch
 
 from TTS.tts.utils.generic_utils import check_config_tts
 from TTS.tts.utils.text.symbols import parse_symbols
-from TTS.tts.utils.io import load_checkpoint
 from TTS.utils.console_logger import ConsoleLogger
 from TTS.utils.generic_utils import create_experiment_folder, get_git_branch
 from TTS.utils.io import copy_model_files, load_config