FROM buildpack-deps:jessie

# remove several traces of debian python
RUN apt-get purge -y python.*

# http://bugs.python.org/issue19846
# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
ENV LANG C.UTF-8

ENV PYPY_VERSION 5.0.1

RUN set -x \
	&& curl -SL "https://bitbucket.org/pypy/pypy/downloads/pypy-${PYPY_VERSION}-linux64.tar.bz2" \
		| tar -xjC /usr/local --strip-components=1

# if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
ENV PYTHON_PIP_VERSION 8.1.1
RUN curl -SL 'https://bootstrap.pypa.io/get-pip.py' | pypy \
	&& pip install --upgrade pip==$PYTHON_PIP_VERSION

CMD ["pypy"]