Update Dockerfile

Dockerfile

@@ -1,7 +1,7 @@
-FROM python:3.9-slim
+# Change from python:3.9-slim to 3.11
+FROM python:3.11-slim
 
 # Install system dependencies for RDKit
-# Using libgl1 instead of the obsolete libgl1-mesa-glx
 RUN apt-get update && apt-get install -y \
     libxrender1 \
     libxext6 \
@@ -12,6 +12,7 @@ WORKDIR /app
 
 # Copy requirements and install
 COPY requirements.txt .
+RUN pip install --no-cache-dir --upgrade pip
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Copy application code
@@ -24,5 +25,4 @@ RUN mkdir -p checkpoints
 EXPOSE 7860
 
 # Run the application
-# Ensuring port 7860 is used consistently
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]