function uboot_main_patching_python() {
	prepare_pip_packages_for_python_tools

	# outer scope variable: uboot_work_dir

	temp_file_for_output="$(mktemp)" # Get a temporary file for the output.
	# array with all parameters; will be auto-quoted by bash's @Q modifier below
	declare -a params_quoted=(
		"PYTHONUNBUFFERED=yes"                                # Python should not buffer output, so we can see it in real time.
		"PYTHONPYCACHEPREFIX=${SRC}/cache/pycache"            # Python should not use its own cache, but use our own.
		"LOG_DEBUG=${SHOW_DEBUG}"                             # Logging level for python.
		"SRC=${SRC}"                                          # Armbian root
		"OUTPUT=${temp_file_for_output}"                      # Output file for the python script.
		"ASSET_LOG_BASE=$(print_current_asset_log_base_file)" # base file name for the asset log; to write .md summaries.
		"PATCH_TYPE=u-boot"                                   # or, u-boot, or, atf
		"PATCH_DIRS_TO_APPLY=${BOOTPATCHDIR}"                 # A space-separated list of directories to apply...
		"BOARD=${BOARD}"                                      # BOARD is needed for the patchset selection logic; mostly for u-boot.
		"TARGET=${target_patchdir}"                           # TARGET is need for u-boot's SPI/SATA etc selection logic
		"USERPATCHES_PATH=${USERPATCHES_PATH}"                # Needed to find the userpatches.
		# Needed so git can find the global .gitconfig, and Python can parse the PATH to determine which git to use.
		"PATH=${PATH}"
		"HOME=${HOME}"
		# What to do?
		"APPLY_PATCHES=yes"                      # Apply the patches to the filesystem. Does not imply git commiting. If no, still exports the hash.
		"PATCHES_TO_GIT=${PATCHES_TO_GIT:-no}"   # Commit to git after applying the patches.
		"REWRITE_PATCHES=${REWRITE_PATCHES:-no}" # Rewrite the original patch files after git commiting.
		# Git dir, revision, and target branch
		"GIT_WORK_DIR=${uboot_work_dir}"               # "Where to apply patches?"
		"BASE_GIT_REVISION=${uboot_git_revision}"      # The revision we're building/patching. Python will reset and clean to this.
		"BRANCH_FOR_PATCHES=u-boot-${BRANCH}-${BOARD}" # When applying patches-to-git, use this branch.
	)
	display_alert "Calling Python patching script" "for u-boot target" "info"
	declare python3_binary_path
	prepare_python3_binary_for_python_tools
	# "raw_command" is only for logging purposes.
	raw_command="[...shortened u-boot...] ${python3_binary_path} ${SRC}/lib/tools/patching.py" \
		run_host_command_logged env -i "${params_quoted[@]@Q}" "${python3_binary_path}" "${SRC}/lib/tools/patching.py"
	run_host_command_logged cat "${temp_file_for_output}"
	# shellcheck disable=SC1090
	source "${temp_file_for_output}" # SOURCE IT!
	run_host_command_logged rm -f "${temp_file_for_output}"
	return 0
}