Update Dockerfile

Dockerfile

@@ -10,8 +10,14 @@ COPY . /app
 # Install any needed packages specified in requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Create a directory for NLTK data and set permissions
+RUN mkdir -p /app/nltk_data && chmod -R 755 /app/nltk_data
+
+# Set the NLTK_DATA environment variable
+ENV NLTK_DATA=/app/nltk_data
+
 # Run the script to download NLTK data
 RUN python /app/download_nltk_data.py
 
 # Start the FastAPI app on port 7860, the default port expected by Spaces
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]