Fix error in index file path (#1502)

infer/modules/vc/modules.py

@@ -169,18 +169,17 @@ class VC:
             if self.hubert_model is None:
                 self.hubert_model = load_hubert(self.config)
 
-            file_index = (
-                (
-                    file_index.strip(" ")
-                    .strip('"')
-                    .strip("\n")
-                    .strip('"')
-                    .strip(" ")
+            if file_index:
+                file_index = file_index.strip(" ") \
+                .strip('"') \
+                .strip("\n") \
+                .strip('"') \
+                .strip(" ") \
                 .replace("trained", "added")
-                )
-                if file_index != ""
-                else file_index2
-            )  # 防止小白写错，自动帮他替换掉
+            elif file_index2:
+                file_index = file_index2
+            else:
+                file_index = "" # 防止小白写错，自动帮他替换掉
 
             audio_opt = self.pipeline.pipeline(
                 self.hubert_model,