{{

def is_alpine:

env.variant | startswith("alpine")

;

def is_slim:

env.variant | startswith("slim-")

;

def rcVersion:

env.version | rtrimstr("-rc")

-}}

{{ if is_alpine then ( -}}

FROM alpine:{{ env.variant | ltrimstr("alpine") }}

{{ ) elif is_slim then ( -}}

FROM debian:{{ env.variant | ltrimstr("slim-") }}-slim

{{ ) else ( -}}

FROM buildpack-deps:{{ env.variant }}

{{ ) end -}}

# 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

# runtime dependencies

{{ if is_alpine then ( -}}

RUN set -eux; \

apk add --no-cache \

ca-certificates \

tzdata \

;

{{ ) else ( -}}

RUN set -eux; \

apt-get update; \

apt-get install -y --no-install-recommends \

{{ if is_slim then ( -}}

ca-certificates \

netbase \

tzdata \

{{ ) else ( -}}

libbluetooth-dev \

tk-dev \

uuid-dev \

{{ ) end -}}

; \

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

{{ ) end -}}

ENV GPG_KEY {{

{

# gpg: key AA65421D: public key "Ned Deily (Python release signing key) <nad@acm.org>" imported

"3.7": "0D96DF4D4110E5C43FBFB17F2D347EA6AA65421D",

# https://www.python.org/dev/peps/pep-0537/#release-manager-and-crew

# gpg: key B26995E310250568: public key "\xc5\x81ukasz Langa (GPG langa.pl) <lukasz@langa.pl>" imported

"3.8": "E3FF2839C048B25C084DEBE9B26995E310250568",

# https://www.python.org/dev/peps/pep-0569/#release-manager-and-crew

# gpg: key B26995E310250568: public key "\xc5\x81ukasz Langa (GPG langa.pl) <lukasz@langa.pl>" imported

"3.9": "E3FF2839C048B25C084DEBE9B26995E310250568",

# https://www.python.org/dev/peps/pep-0596/#release-manager-and-crew

# gpg: key 64E628F8D684696D: public key "Pablo Galindo Salgado <pablogsal@gmail.com>" imported

"3.10": "A035C8C19219BA821ECEA86B64E628F8D684696D",

# https://www.python.org/dev/peps/pep-0619/#release-manager-and-crew

# gpg: key 64E628F8D684696D: public key "Pablo Galindo Salgado <pablogsal@gmail.com>" imported

"3.11": "A035C8C19219BA821ECEA86B64E628F8D684696D",

# https://www.python.org/dev/peps/pep-0664/#release-manager-and-crew

}[rcVersion]

}}

ENV PYTHON_VERSION {{ .version }}

RUN set -eux; \

\

{{ if is_alpine then ( -}}

apk add --no-cache --virtual .build-deps \

gnupg \

tar \

xz \

\

bluez-dev \

bzip2-dev \

dpkg-dev dpkg \

expat-dev \

findutils \

gcc \

gdbm-dev \

libc-dev \

libffi-dev \

libnsl-dev \

libtirpc-dev \

linux-headers \

make \

ncurses-dev \

openssl-dev \

pax-utils \

readline-dev \

sqlite-dev \

tcl-dev \

tk \

tk-dev \

util-linux-dev \

xz-dev \

zlib-dev \

; \

\

{{ ) elif is_slim then ( -}}

savedAptMark="$(apt-mark showmanual)"; \

apt-get update; \

apt-get install -y --no-install-recommends \

dpkg-dev \

gcc \

gnupg dirmngr \

libbluetooth-dev \

libbz2-dev \

libc6-dev \

libexpat1-dev \

libffi-dev \

libgdbm-dev \

liblzma-dev \

libncursesw5-dev \

libreadline-dev \

libsqlite3-dev \

libssl-dev \

make \

tk-dev \

uuid-dev \

wget \

xz-utils \

zlib1g-dev \

; \

\

{{ ) else "" end -}}

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"; \

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

gpg --batch --keyserver hkps://keys.openpgp.org --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 --extract --directory /usr/src/python --strip-components=1 --file 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 \

{{

# <3.10 does not have -fno-semantic-interposition enabled and --with-lto does nothing for performance

if [ "3.7", "3.8", "3.9" ] | index(rcVersion) then "" else (

-}}

--with-lto \

{{ ) end -}}

--with-system-expat \

--with-system-ffi \

--without-ensurepip \

; \

nproc="$(nproc)"; \

make -j "$nproc" \

{{ if is_alpine then ( -}}

# set thread stack size to 1MB so we don't segfault before we hit sys.getrecursionlimit()

# https://github.com/alpinelinux/aports/commit/2026e1259422d4e0cf92391ca2d3844356c649d0

EXTRA_CFLAGS="-DTHREAD_STACK_SIZE=0x100000" \

{{ ) else "" end -}}

{{ if is_slim or is_alpine then ( -}}

LDFLAGS="-Wl,--strip-all" \

{{ ) else "" end -}}

{{ if env.version == "3.7" then ( -}}

# 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 \

' \

{{

) else

# PROFILE_TASK has a reasonable default starting in 3.8+; see:

# https://bugs.python.org/issue36044

# https://github.com/python/cpython/pull/14702

# https://github.com/python/cpython/pull/14910

""

end

-}}

; \

make install; \

cd /; \

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

{{ if [ "3.7", "3.8" ] | index(env.version) then ( -}}

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

{{

) else

# "wininst-*.exe" is not installed for Unix platforms on Python 3.9+: https://github.com/python/cpython/pull/14511

""

end

-}}

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

; \

\

{{ if is_alpine then ( -}}

find /usr/local -type f -executable -not \( -name '*tkinter*' \) -exec scanelf --needed --nobanner --format '%n#p' '{}' ';' \

| tr ',' '\n' \

| sort -u \

| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \

| xargs -rt apk add --no-network --virtual .python-rundeps \

; \

apk del --no-network .build-deps; \

{{ ) else ( -}}

ldconfig; \

{{ if is_slim then ( -}}

\

apt-mark auto '.*' > /dev/null; \

apt-mark manual $savedAptMark; \

find /usr/local -type f -executable -not \( -name '*tkinter*' \) -exec ldd '{}' ';' \

| awk '/=>/ { print $(NF-1) }' \

| sort -u \

| xargs -r dpkg-query --search \

| cut -d: -f1 \

| sort -u \

| xargs -r apt-mark manual \

; \

apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \

rm -rf /var/lib/apt/lists/*; \

{{ ) else "" end -}}

{{ ) end -}}

\

python3 --version

# make some useful symlinks that are expected to exist ("/usr/local/bin/python" and friends)

RUN set -eux; \

for src in idle3 pydoc3 python3 python3-config; do \

dst="$(echo "$src" | tr -d 3)"; \

[ -s "/usr/local/bin/$src" ]; \

[ ! -e "/usr/local/bin/$dst" ]; \

ln -svT "/usr/local/bin/$src" "/usr/local/bin/$dst"; \

done

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

ENV PYTHON_PIP_VERSION {{ .pip.version }}

# https://github.com/docker-library/python/issues/365

ENV PYTHON_SETUPTOOLS_VERSION {{ .setuptools.version }}

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

ENV PYTHON_GET_PIP_URL {{ .pip.url }}

ENV PYTHON_GET_PIP_SHA256 {{ .pip.sha256 }}

RUN set -eux; \

\

{{ if is_slim then ( -}}

savedAptMark="$(apt-mark showmanual)"; \

apt-get update; \

apt-get install -y --no-install-recommends wget; \

\

{{ ) else "" end -}}

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

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

\

{{ if is_slim then ( -}}

apt-mark auto '.*' > /dev/null; \

[ -z "$savedAptMark" ] || apt-mark manual $savedAptMark > /dev/null; \

apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \

rm -rf /var/lib/apt/lists/*; \

\

{{ ) else "" end -}}

python get-pip.py \

--disable-pip-version-check \

--no-cache-dir \

"pip==$PYTHON_PIP_VERSION" \

"setuptools==$PYTHON_SETUPTOOLS_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"]