Update Dockerfile

Dockerfile

@@ -1,8 +1,8 @@
 FROM python:3.10-slim
 
-# Set environment variables to reduce pip caching and ensure consistent builds
-ENV PIP_NO_CACHE_DIR=1
+# Set environment variables for consistent builds
 ENV PYTHONUNBUFFERED=1
+ENV VENV_PATH=/opt/venv
 
 # Install system dependencies from apt.txt
 COPY apt.txt .
@@ -10,21 +10,25 @@ RUN apt-get update && \
     xargs -a apt.txt apt-get install -y && \
     rm -rf /var/lib/apt/lists/*
 
-# Upgrade pip to avoid dependency resolution issues
+# Create and activate virtual environment
+RUN python -m venv $VENV_PATH
+ENV PATH="$VENV_PATH/bin:$PATH"
+
+# Upgrade pip in virtual environment
 RUN pip install --upgrade pip
 
+# Install Python dependencies in virtual environment
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
 # Set working directory
 WORKDIR /app
 
-# Copy requirements and install
-COPY requirements.txt .
-RUN pip install -r requirements.txt
-
 # Copy app code
 COPY app.py .
 
 # Expose port for Hugging Face Spaces
 EXPOSE 7860
 
-# Run Streamlit app
+# Run Streamlit app using virtual environment
 CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]