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Initial implementation (#1)
* Fix test harness * Update test harness * Update test harness to use amazon linux images * Use v3 of checkout action * Revert "Use v3 of checkout action" This reverts commit eb6ad15. * Install runner pre requisites * Install runner pre requisites - gzip * Install runner pre requisites - git * Assert pip version * build python * Install runner pre requisites - sudo * Fix script issue * Update test harness to use patch version * Reduce log size * Update python assertion order * Add debug to test case * ensure system does not get affected * fix silly issue * fix version path to enable caching workflow * fix silly issue * Add test for cache functionality * Fix path setup * Install runner pre requisites - which * Fix caching * Fix python symlink * Add aliases * Reduce amount of sudo * Update cache key to include architecture * Add support for partial version specification * Fix version logic * Add test debug flag * Add version input * Reduce installations
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‎.github/workflows/github_actions_linter.yml‎

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name: Lint GitHub Actions workflows
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on: [ push ]
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jobs:
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actionlint:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- name: Download actionlint
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id: get-action-lint
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run: |
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bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
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- name: Check workflow files
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run: |
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${{ steps.get-action-lint.outputs.executable }} -color

‎.github/workflows/test.yml‎

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on: [push]
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on: [ push ]
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jobs:
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test_setup_python:
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strategy:
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matrix:
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# This tests the amazon linux versions receiving standard support
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# Refer - https://endoflife.date/amazon-linux
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amazon-linux-version: [ 2, 2023 ]
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# This tests the lowest supported python version and the latest stable python version
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# Refer - https://devguide.python.org/versions/#status-of-python-versions
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python-version:
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- 3.8.18
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- 3.12.0
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cache:
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- true
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- false
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runs-on: ubuntu-latest
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container: amazonlinux:${{ matrix.amazon-linux-version }}
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steps:
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- uses: actions/checkout@v4
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- name: Setup runner
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run: |
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yum install -y git tar gzip sudo which
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- uses: actions/checkout@v3
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- name: Install python
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uses: ./
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with:
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python-version: ${{ matrix.python-version }}
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cache: ${{ matrix.cache }}
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- name: Test installation
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run: |
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set -x
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which python3
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which python
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python3 --version 2>&1 | grep -F "${{ matrix.python-version }}"
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test "$(python3 -m pip --version)" = "$(pip3 --version)"
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python --version 2>&1 | grep -F "${{ matrix.python-version }}"
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test "$(python3 -m pip --version)" = "$(pip --version)"
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test_major_version_specification:
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runs-on: ubuntu-latest
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container: amazonlinux:2023
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steps:
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- name: Setup runner
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run: |
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yum install -y git tar gzip sudo
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- uses: actions/checkout@v3
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- name: Install python
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uses: .
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uses: ./
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with:
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python-version: 3.8
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python-version: 3
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- name: Test installation
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run: |
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set -x
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python3 --version 2>&1 | grep -F "3.12.0"
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test_minor_version_specification:
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runs-on: ubuntu-latest
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container: amazonlinux:2023
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steps:
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- name: Setup runner
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run: |
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yum install -y git tar gzip sudo
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- uses: actions/checkout@v3
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- name: Install python
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uses: ./
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with:
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python-version: 3.9
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- name: Test installation
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run: |
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python --version
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set -x
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python3 --version 2>&1 | grep -F "3.9.18"

‎action.yml‎

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python-version:
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description: 'Version of python to be installed'
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required: true
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cache:
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description: Used to specify whether caching is needed. Set to true, if you'd like to enable caching.
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required: true
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default: 'true'
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runs:
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using: "composite"
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steps:
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- name: Find exact python version
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id: find-exact-python-version
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shell: bash
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run: |
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exact_python_version=$(./find-exact-python-version.sh "${{ inputs.python-version }}")
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echo "exact_python_version=${exact_python_version}" >> $GITHUB_OUTPUT
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- name: Set installation directory
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id: set-installation-directory
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shell: bash
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run: |
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exact_python_version="${{ steps.find-exact-python-version.outputs.exact_python_version }}"
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echo "installation_directory=~/setup-python-amazon-linux/.python-versions/${exact_python_version}" >> $GITHUB_OUTPUT
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- name: Cache
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id: cache-python
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uses: actions/cache@v3
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if: inputs.cache == 'true'
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with:
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path: |
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${{ steps.set-installation-directory.outputs.installation_directory }}
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key: python-${{ steps.find-exact-python-version.outputs.exact_python_version }}-${{ runner.arch }}
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- id: setup-python
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shell: bash
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if: inputs.cache == 'false' || (inputs.cache == 'true' && steps.cache-python.outputs.cache-hit != 'true')
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run: |
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installation_directory=${{ steps.set-installation-directory.outputs.installation_directory }}
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mkdir -p "${installation_directory}"
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exact_python_version="${{ steps.find-exact-python-version.outputs.exact_python_version }}"
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./install-python.sh "${exact_python_version}" "${installation_directory}"
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- name: Add python to PATH
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shell: bash
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run: |
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./install-python.sh ${{ inputs.python-version }}
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installation_directory=${{ steps.set-installation-directory.outputs.installation_directory }}
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echo "${installation_directory}/bin" >> ${GITHUB_PATH}
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branding:
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icon: 'code'
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color: 'yellow'

‎find-exact-python-version.sh‎

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#!/usr/bin/env bash
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set -euo pipefail
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specified_version="$1"
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# This versions map should be kept in sync with
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# - https://www.python.org/downloads/
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# - https://devguide.python.org/versions/
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case "${specified_version}" in
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"3")
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echo "3.12.0"
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;;
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"3.12")
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echo "3.12.0"
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;;
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"3.11")
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echo "3.11.6"
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;;
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"3.10")
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echo "3.10.13"
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;;
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"3.9")
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echo "3.9.18"
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;;
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"3.8")
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echo "3.8.18"
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;;
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*)
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echo "${specified_version}"
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;;
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esac

‎install-python.sh‎

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#!/usr/bin/env bash
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set -euo pipefail
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# Follows the guidelines from https://realpython.com/installing-python/#how-to-build-python-from-source-code
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function setup_build_prerequisites() {
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sudo yum groupinstall -y "Development Tools"
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sudo yum install -y tar gzip wget
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sudo yum install -y gcc openssl-devel bzip2-devel libffi-devel
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}
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function set_aliases() {
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ln -sf "${python_installation_dir}/bin/python3" "${python_installation_dir}/bin/python"
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ln -sf "${python_installation_dir}/bin/pip3" "${python_installation_dir}/bin/pip"
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}
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function setup_python() {
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echo "installing python..."
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python_version="$1"
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python_installation_dir="$2"
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setup_build_prerequisites
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mkdir -p "${python_installation_dir}"
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temp_dir=$(mktemp -d)
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pushd "${temp_dir}" >/dev/null
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wget "https://www.python.org/ftp/python/${python_version}/Python-${python_version}.tgz"
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tar -zxf "Python-${python_version}.tgz"
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pushd "Python-${python_version}" >/dev/null
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./configure --enable-optimizations --prefix="${python_installation_dir}"
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make -j 8
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make install
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popd >/dev/null
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popd
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rm -rf "${temp_dir}"
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set_aliases
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}
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setup_python
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setup_python "$1" "$2"

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