fix cv3 train

examples/libritts/cosyvoice/local/prepare_data.py

@@ -40,11 +40,10 @@ def main():
     with open('{}/spk2utt'.format(args.des_dir), 'w') as f:
         for k, v in spk2utt.items():
             f.write('{} {}\n'.format(k, ' '.join(v)))
-    if args.instruct is True:
+    if args.instruct != '':
         with open('{}/instruct'.format(args.des_dir), 'w') as f:
             for k, v in utt2text.items():
-                # NOTE in CosyVoice3, we add instruct in sequence
-                f.write('{} You are a helpful assistant.<|endofprompt|>\n'.format(k, v))
+                f.write('{} {}\n'.format(k, args.instruct))
     return
 
 
@@ -55,8 +54,6 @@ if __name__ == "__main__":
     parser.add_argument('--des_dir',
                         type=str)
     parser.add_argument('--instruct',
-                        action='store_true',
-                        default=False,
-                        help='create instruct file or not')
+                        type=str)
     args = parser.parse_args()
     main()