折角ビルドしたのにmatplotlibもpandasもpipできなかったので結局Docker。
curl -fsSL https://get.docker.com/ | bash
参考
docs.docker.jp (accessed on 2021/06/10)
Dockerfile
適当にDockerfile書いて終わり。
FROM python:3.9.5-buster as builder WORKDIR /opt/app COPY requirements.lock /opt/app RUN pip install --upgrade pip \ && pip install -r requirements.lock FROM python:3.9.5-slim-buster as runner WORKDIR /opt/app COPY --from=builder /usr/local/lib/python3.9/site-packages /usr/local/lib/python3.9/site-packages CMD ["/bin/bash"]