FROM buildpack-deps:%%PLACEHOLDER%%
# ensure local python is preferred over distribution python
ENV PATH /usr/local/bin:$PATH
# http://bugs.python.org/issue19846
# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
ENV LANG C.UTF-8
# extra dependencies (over what buildpack-deps already includes)
RUN apt-get update && apt-get install -y --no-install-recommends \
# Python 3.4 on Stretch+ needs to use an older version of "libssl-dev" (these lines both get removed for every other combination)
libssl-dev \
tk-dev \
uuid-dev \
&& rm -rf /var/lib/apt/lists/*
ENV GPG_KEY %%PLACEHOLDER%%
ENV PYTHON_VERSION %%PLACEHOLDER%%
RUN set -ex \
\
&& wget -O python.tar.xz "https://www.python.org/ftp/python/${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-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 \
&& ldconfig \
\
&& find /usr/local -depth \
\( \
\( -type d -a \( -name test -o -name tests \) \) \
-o \
\( -type f -a \( -name '*.pyc' -o -name '*.pyo' \) \) \
\) -exec rm -rf '{}' + \
&& rm -rf /usr/src/python \
\
&& 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 '