Handle gradio None values

modules/whisper/data_classes.py

@@ -1,6 +1,6 @@
 import gradio as gr
 import torch
-from typing import Optional, Dict, List
+from typing import Optional, Dict, List, Union
 from pydantic import BaseModel, Field, field_validator, ConfigDict
 from gradio_i18n import Translate, gettext as _
 from enum import Enum
@@ -241,7 +241,7 @@ class WhisperParams(BaseParams):
         default=True,
         description="Suppress blank outputs at start of sampling"
     )
-    suppress_tokens: Optional[str] = Field(default="[-1]", description="Token IDs to suppress")
+    suppress_tokens: Optional[Union[List, str]] = Field(default=[-1], description="Token IDs to suppress")
     max_initial_timestamp: float = Field(
         default=0.0,
         ge=0.0,
@@ -279,6 +279,20 @@ class WhisperParams(BaseParams):
         from modules.utils.constants import AUTOMATIC_DETECTION
         return None if v == AUTOMATIC_DETECTION.unwrap() else v
 
+    @field_validator('suppress_tokens')
+    def validate_supress_tokens(cls, v):
+        import ast
+        try:
+            if isinstance(v, str):
+                suppress_tokens = ast.literal_eval(v)
+                if not isinstance(suppress_tokens, list):
+                    raise ValueError("Invalid Suppress Tokens. The value must be type of List[int]")
+                return suppress_tokens
+            if isinstance(v, list):
+                return v
+        except Exception as e:
+            raise ValueError(f"Invalid Suppress Tokens. The value must be type of List[int]: {e}")
+
     @classmethod
     def to_gradio_inputs(cls,
                          defaults: Optional[Dict] = None,
@@ -301,7 +315,7 @@ class WhisperParams(BaseParams):
                 gr.Dropdown(
                     label=_("Language"),
                     choices=available_langs,
-                    value=defaults.get("lang", cls.__fields__["lang"].default),
+                    value=defaults.get("lang", AUTOMATIC_DETECTION),
                 ),
                 gr.Checkbox(
                     label=_("Translate to English?"),
@@ -407,7 +421,7 @@ class WhisperParams(BaseParams):
             ),
             gr.Textbox(
                 label="Suppress Tokens",
-                value=defaults.get("suppress_tokens", cls.__fields__["suppress_tokens"].default),
+                value=defaults.get("suppress_tokens", "[-1]"),
                 info="Token IDs to suppress"
             ),
             gr.Number(