activate.py 文件源码

def activate(dirname, ui_mode, conda_environment, command_name):
    """Prepare project and return lines to be sourced.

    Future direction: should also activate the proper conda env.

    Returns:
        None on failure or a list of lines to print.
    """
    project = load_project(dirname)
    result = prepare_with_ui_mode_printing_errors(project,
                                                  ui_mode=ui_mode,
                                                  env_spec_name=conda_environment,
                                                  command_name=command_name)
    if result.failed:
        return None

    exports = []
    # sort so we have deterministic output order for tests
    sorted_keys = list(result.environ.keys())
    sorted_keys.sort()
    for key in sorted_keys:
        value = result.environ[key]
        if key not in os.environ or os.environ[key] != value:
            exports.append("export {key}={value}".format(key=key, value=quote(value)))
    return exports