spaces not supported in layout name

[sellout]

Loading this layout in Kiibohd Configurator 1.1.0 results in errors in the build log:

FATAL Could not find 'MDErgo1-Atreus.kll' DefaultMap
FATAL Could not find 'default-0.kll' DefaultMap
FATAL Could not find 'MDErgo1-Atreus.kll' PartialMap
FATAL Could not find 'default-1.kll' PartialMap
FATAL Could not find 'MDErgo1-Atreus.kll' PartialMap
FATAL Could not find 'default-2.kll' PartialMap

and a number of others, but the log continues with a bunch of output until

[1/41] Generating KLL Layout
FAILED: generatedKeymap.h kll_defs.h usb_hid.h generatedPixelmap.c kll.json 
cd /controller && cmake -E env GITHUB_APIKEY=376423eb012a4587857428bf0bf10ac37415cb99 python3 -m kll --kiibohd-debug --config /controller/Scan/Devices/ISSILed/capabilities.kll /controller/Scan/Devices/MatrixARMPeriodic/capabilities.kll /controller/Scan/Devices/STLcd/capabilities.kll /controller/Scan/Devices/UARTConnect/capabilities.kll /controller/Macro/PartialMap/capabilities.kll /controller/Macro/PixelMap/capabilities.kll /controller/Output/HID-IO/capabilities.kll /controller/Output/USB/capabilities.kll /controller/Debug/latency/capabilities.kll /controller/Debug/led/capabilities.kll /controller/Lib/arm_cortex.kll /controller/Lib/kinetis.kll --base /controller/Scan/Infinity_Ergodox/scancode_map.kll /controller/Scan/Infinity_Ergodox/rightHand.kll /controller/Scan/Infinity_Ergodox/slave1.kll /controller/Scan/Infinity_Ergodox/leftHand.kll --default /root/.local/share/virtualenvs/Keyboards-41-guJFC/lib/python3.7/site-packages/kll/layouts/infinity_ergodox/lcdFuncMap.kll --partial --partial --emitter kiibohd --def-output /tmp/tmp.zXcP7o16yB/right/kll_defs.h --map-output /tmp/tmp.zXcP7o16yB/right/generatedKeymap.h --hid-output /tmp/tmp.zXcP7o16yB/right/usb_hid.h --pixel-output /tmp/tmp.zXcP7o16yB/right/generatedPixelmap.c --json-output /tmp/tmp.zXcP7o16yB/right/kll.json
Usage: kll [options..] [<generic>..]
__main__.py: error: argument --partial: expected at least one argument
ninja: build stopped: subcommand failed.
Error in build. Exiting...

which is even less clear than the earlier error messages.

There should at least be a clearer error when a layout has spaces in the name. But either s/ /_/g or (even better) allowing spaces and quoting paths would be great.