```yaml
description: "Python dependencies built in a split module"
split: true
```
```dockerfile
FROM python:3.11-slim AS builder
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
RUN pip install --no-cache-dir numpy pandas scipy
```
```dockerfile
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
```
```dockerfile
RUN echo finalized
```