Bash script to create a Python release. Uploads to the test server first, signs uploads, verifies install after upload, and some other checks.

python_release.sh

function python_release() {
    ##
    ## Upload a new release for a python package
    ##
    ## Requirements:
    ## - ~/.pypirc exists and contains both testpypi and pypi
    ## - Active virtual environment
    ## - setup.py exists
    ##
    ## Besides the above, will verify that:
    ## - Upload to testpypi works, before attempting pypi
    ## - Install of the package works after upload
    ##
    ## Usage:
    ## Just call `python_release` in the project directory
    ##
    if [[ ! -w "$(which python)" ]]
    then
        echo "not in a virtual environment?" 1>&2
        return 1
    fi

    pypi_conf_pth="$HOME/.pypirc"
    if [[ ! -e "$pypi_conf_pth" ]]
    then
        echo "config file not found: $pypi_conf_pth" 1>&2
        return 2
    fi
    chmod 700 "$pypi_conf_pth"

    if [[ ! -e "setup.py" ]]
    then
        echo "setup.py file not found" 1>&2
        return 3
    fi

    package_name="$(python setup.py --name)"
    package_version="$(python setup.py --version)"
    if [[ -z "$package_name" || -z "$package_version" ]]
    then
        echo "could not determine package name/version (found ${package_name}==${package_version})" 1>&2
        return 4
    fi
    echo "package: ${package_name}==${package_version}"

    if [[ -e dist ]]
    then
        echo "removing old releases in dist/*"
        rm -rf dist/ || return 5
    fi
    echo "creating new source release"
    python setup.py clean sdist || return 6

    echo "create new wheel release"
    python setup.py bdist_wheel || return 7

    echo "install twine in the environment"
    pip install --upgrade pip twine || return 8

    echo "doing TEST upload"
    echo "note that accounts may be deleted after a while, go to https://test.pypi.org/account/register/"
    twine upload --sign --repository testpypi dist/* || return 9

    echo "uploading (check .pypirc in case of problems)"
    twine upload --sign --repository pypi dist/* || return 10

    echo "test that package can now be installed"
    package_test_dir="/tmp/$USER/pip_package_test"
    mkdir -m 700 -p "$package_test_dir" || return 11
    pip install --target "$package_test_dir" --upgrade "${package_name}==${package_version}"
    package_was_installed="$?"
    echo "cleaning up test install (${package_test_dir})"
    rm -rf "$package_test_dir" || return 12
    if [[ "$package_was_installed" -ne "0" ]]
    then
        echo "FAILED TO INSTALL ${package_name}==${package_version} (status=${package_was_installed})" 1>&2
        return 13
    fi
}