FROM buildpack-deps:%%PLACEHOLDER%%

# ensure local python is preferred over distribution python

ENV PATH /usr/local/bin:$PATH

# 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

# extra dependencies (over what buildpack-deps already includes)

RUN apt-get update && apt-get install -y --no-install-recommends \

libbluetooth-dev \

tk-dev \

uuid-dev \

&& rm -rf /var/lib/apt/lists/*

ENV GPG_KEY %%PLACEHOLDER%%

ENV PYTHON_VERSION %%PLACEHOLDER%%

RUN set -ex \

\

&& wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \

&& wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" \

&& export GNUPGHOME="$(mktemp -d)" \

&& gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \

&& gpg --batch --verify python.tar.xz.asc python.tar.xz \

&& { command -v gpgconf > /dev/null && gpgconf --kill all || :; } \

&& rm -rf "$GNUPGHOME" python.tar.xz.asc \

&& mkdir -p /usr/src/python \

&& tar -xJC /usr/src/python --strip-components=1 -f python.tar.xz \

&& rm python.tar.xz \

\

&& cd /usr/src/python \

&& gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)" \

&& ./configure \

--build="$gnuArch" \

--enable-loadable-sqlite-extensions \

--enable-optimizations \

--enable-option-checking=fatal \

--enable-shared \

--with-system-expat \

--with-system-ffi \

--without-ensurepip \

&& make -j "$(nproc)" \

# setting PROFILE_TASK makes "--enable-optimizations" reasonable: https://bugs.python.org/issue36044 / https://github.com/docker-library/python/issues/160#issuecomment-509426916

PROFILE_TASK='-m test.regrtest --pgo \

test_array \

test_base64 \

test_binascii \

test_binhex \

test_binop \

test_bytes \

test_c_locale_coercion \

test_class \

test_cmath \

test_codecs \

test_compile \

test_complex \

test_csv \

test_decimal \

test_dict \

test_float \

test_fstring \

test_hashlib \

test_io \

test_iter \

test_json \

test_long \

test_math \

test_memoryview \

test_pickle \

test_re \

test_set \

test_slice \

test_struct \

test_threading \

test_time \

test_traceback \

test_unicode \

' \

&& make install \

&& rm -rf /usr/src/python \

\

&& find /usr/local -depth \

\( \

\( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \

-o \( -type f -a \( -name '*.pyc' -o -name '*.pyo' -o -name '*.a' \) \) \

-o \( -type f -a -name 'wininst-*.exe' \) \

\) -exec rm -rf '{}' + \

\

&& ldconfig \

\

&& python3 --version

# make some useful symlinks that are expected to exist

RUN cd /usr/local/bin \

&& ln -s idle3 idle \

&& ln -s pydoc3 pydoc \

&& ln -s python3 python \

&& ln -s python3-config python-config

# if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"

ENV PYTHON_PIP_VERSION %%PLACEHOLDER%%

# https://github.com/pypa/get-pip

ENV PYTHON_GET_PIP_URL %%PLACEHOLDER%%

ENV PYTHON_GET_PIP_SHA256 %%PLACEHOLDER%%

RUN set -ex; \

\

wget -O get-pip.py "$PYTHON_GET_PIP_URL"; \

echo "$PYTHON_GET_PIP_SHA256 *get-pip.py" | sha256sum --check --strict -; \

\

python get-pip.py \

--disable-pip-version-check \

--no-cache-dir \

"pip==$PYTHON_PIP_VERSION" \

; \

pip --version; \

\

find /usr/local -depth \

\( \

\( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \

-o \

\( -type f -a \( -name '*.pyc' -o -name '*.pyo' \) \) \

\) -exec rm -rf '{}' +; \

rm -f get-pip.py

CMD ["python3"]