Update app.py

app.py

@@ -284,21 +284,34 @@ def transcribe_audio(input_source, pipeline_type, model_id, dtype, batch_size, d
 
 def update_model_dropdown(pipeline_type):
     model_choices = get_model_options(pipeline_type)
-    return gr.Dropdown.update(choices=model_choices, value=model_choices[0])
-
+    logging.info(f"Model choices for {pipeline_type}: {model_choices}")
+    return gr.Dropdown.update(choices=model_choices, value=model_choices[0] if model_choices else None)
+    
 with gr.Blocks() as iface:
     gr.Markdown("# Multi-Pipeline Transcription")
     gr.Markdown("Transcribe audio using multiple pipelines and models.")
     
     with gr.Row():
         input_source = gr.Textbox(label="Audio Source (Upload, URL, or YouTube URL)")
-        pipeline_type = gr.Dropdown(choices=["faster-batched", "faster-sequenced", "transformers"], label="Pipeline Type", value="faster-batched")
-        model_id = gr.Dropdown(label="Model", choices=get_model_options("faster-batched"), value=get_model_options("faster-batched")[0])
+        pipeline_type = gr.Dropdown(
+            choices=["faster-batched", "faster-sequenced", "transformers"],
+            label="Pipeline Type",
+            value="faster-batched"
+        )
+        model_id = gr.Dropdown(
+            label="Model",
+            choices=get_model_options("faster-batched"),
+            value=get_model_options("faster-batched")[0]
+        )
     
     with gr.Row():
         dtype = gr.Dropdown(choices=["int8", "float16", "float32"], label="Data Type", value="int8")
         batch_size = gr.Slider(minimum=1, maximum=32, step=1, value=16, label="Batch Size")
-        download_method = gr.Dropdown(choices=["yt-dlp", "pytube", "youtube-dl", "yt-dlp-alt", "ffmpeg", "aria2", "wget"], label="Download Method", value="yt-dlp")
+        download_method = gr.Dropdown(
+            choices=["yt-dlp", "pytube", "youtube-dl", "yt-dlp-alt", "ffmpeg", "aria2", "wget"],
+            label="Download Method",
+            value="yt-dlp"
+        )
     
     with gr.Row():
         start_time = gr.Number(label="Start Time (seconds)", value=0)