Function prepend_dev_python_source_path

src/python/runner.cpp:240–250

#ifdef LFS_DEV_PYTHON_SOURCE_DIR
        void prepend_dev_python_source_path(PyObject* const sys_path) {
            const auto source_dir = lfs::core::utf8_to_path(LFS_DEV_PYTHON_SOURCE_DIR);
            std::error_code ec;
            if (!std::filesystem::exists(source_dir / "lfs_plugins", ec)) {
                LOG_WARN("Python dev source path is unavailable: {}",
                         lfs::core::path_to_utf8(source_dir));
                return;
            }

            prepend_sys_path_once(sys_path, source_dir, "dev source Python dir");
        }

        void start_dev_python_watcher(PyObject* const lfs_plugins) {
            if (!env_flag_enabled("LFS_PYTHON_HOT_RELOAD", true)) {