Update app.py

app.py

@@ -13,6 +13,13 @@ import shutil
 import warnings
 warnings.filterwarnings("ignore")
 
+# NLTK download for 'punkt' tokenizer data
+import nltk
+try:
+    nltk.data.find('tokenizers/punkt')
+except nltk.downloader.DownloadError:
+    nltk.download('punkt')
+
 # Import audio processing libraries
 try:
     from demucs.pretrained import get_model
@@ -139,7 +146,6 @@ __init__(self):
 
             return vocals_path, instrumental_path
 
-
         except Exception as e:
             print(f"Basic separation error: {e}")
             return None, None
@@ -366,7 +372,7 @@ def process_voice_samples(voice_files) -> str:
 def create_interface():
     with gr.Blocks(
         title="🎵 AI Cover Song Platform",
-        # Removed theme=gr.themes.Soft for compatibility with Gradio versions < 4.0.0
+        # Removed theme=gr.themes.Soft for compatibility with Gradio versions < 4.0.0 (as per requirements.txt change)
         css="""
         .gradio-container {
             font-family: 'Inter', sans-serif;