unknown_words.txt saving/parsing issue

[litinoveweedle]

Using Rhasspy on RPi with following configuration:

{
"handle": {
"system": "hass"
},
"home_assistant": {
"access_token": "SECRET",
"url": "https://XXXXXXXXXX:8123"
},
"intent": {
"system": "conversation"
},
"microphone": {
"arecord": {
"device": "plughw:CARD=ArrayUAC10,DEV=0"
},
"system": "arecord"
},
"speech_to_text": {
"remote": {
"url": "http://XXXXXXXXXX:12101/api/speech-to-text"
},
"system": "remote"
},
"text_to_speech": {
"system": "flite"
},
"wake": {
"porcupine": {
"keyword_path": "porcupine/picovoice_raspberry-pi.ppn"
},
"system": "porcupine"
}
}

File unknown_words.txt is being written by Rhasspy (as I didn't touch the file manually) into profile directory in the following format:

cat unknown_words.txt
bedroom
blue
closed
cold
door
garage
.....

When loading Rhasspy web console I get error:

not enough values to unpack (expected 2, got 1)

It seems, that code parsing file unknown_words.txt expects couples format, not single word on line. Would it be please possible to add correct handling for such state?

Log with full trace:

[INFO:45757756] quart.serving: 192.168.1.99:45094 GET /api/problems 1.1 200 300 204492
[INFO:45757751] quart.serving: 192.168.1.99:45104 GET /api/speakers 1.1 200 1232 354031
[DEBUG:45757743] InboxActor: -> stopped
[DEBUG:45757735] InboxActor: -> stopped
[INFO:45757642] quart.serving: 192.168.1.99:45102 GET /api/microphones 1.1 200 1232 245067
[DEBUG:45757624] InboxActor: -> stopped
[INFO:45757565] quart.serving: 192.168.1.99:45100 GET /api/unknown-words 1.1 500 47 31015
[ERROR:45757544] main: not enough values to unpack (expected 2, got 1)
Traceback (most recent call last):
File "/usr/share/rhasspy/.venv/lib/python3.7/site-packages/quart/app.py", line 1471, in full_dispatch_request
result = await self.dispatch_request(request_context)
File "/usr/share/rhasspy/.venv/lib/python3.7/site-packages/quart/app.py", line 1519, in dispatch_request
return await handler(**request_.view_args)
File "app.py", line 871, in api_unknown_words
word, pronunciation = re.split(r"[ ]+", line, maxsplit=1)
ValueError: not enough values to unpack (expected 2, got 1)
[INFO:45757535] quart.serving: 192.168.1.99:45106 GET /api/profile 1.1 200 9106 56415
[INFO:45757532] quart.serving: 192.168.1.99:45094 GET /api/profile 1.1 200 7013 54535
[INFO:45757524] quart.serving: 192.168.1.99:45092 GET /api/profiles 1.1 200 144 125124
[INFO:45757519] quart.serving: 192.168.1.99:45108 GET /api/events/wake 1.1 101 - 39027
[INFO:45757501] quart.serving: 192.168.1.99:45100 GET /api/phonemes 1.1 200 1526 104755
[DEBUG:45757404] main: Loading phoneme examples from /usr/share/rhasspy/profiles/en/phoneme_examples.txt
[INFO:45757391] quart.serving: 192.168.1.99:45094 GET /api/slots 1.1 200 2 50046
[INFO:45757379] quart.serving: 192.168.1.99:45092 GET /api/sentences 1.1 200 581 63423
[INFO:45757310] quart.serving: 192.168.1.99:45098 GET /api/events/intent 1.1 101 - 5013
[INFO:45757235] quart.serving: 192.168.1.99:45096 GET /api/events/log 1.1 101 - 5719