Dockerfile-py3 - external/github.com/docker/docker-py - Git at Google

 FROM python:3.6

 RUN mkdir /src
 WORKDIR /src

 COPY requirements.txt /src/requirements.txt
 RUN pip install -r requirements.txt

 COPY test-requirements.txt /src/test-requirements.txt
 RUN pip install -r test-requirements.txt

 COPY . /src
 RUN pip install .
	FROM python:3.6

	RUN mkdir /src
	WORKDIR /src

	COPY requirements.txt /src/requirements.txt
	RUN pip install -r requirements.txt

	COPY test-requirements.txt /src/test-requirements.txt
	RUN pip install -r test-requirements.txt

	COPY . /src
	RUN pip install .