500 internal server error (Windows)

Configuration
1

I just got this error.

I’ve got no clue how it happened, I even did a image restore to the first of this month when I wasn’t getting such error. It didn’t help. I tried to uninstall python and home assistant, both didn’t help. Has anyone else had this problem in Windows and been able to over come it? Thanks guys

To elaborate a bit more, every time I try go to HA in the browser this is the error that appears server side and in the logs:

Traceback (most recent call last):
File "C:\Users\Media\AppDat2017-11-11 16:45:27 ERROR (MainThread) [aiohttp.server] Error handling request
Traceback (most recent call last):
File “C:\Users\Media\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_protocol.py”, line 278, in data_received
messages, upgraded, tail = self._request_parser.feed_data(data)
File “aiohttp_http_parser.pyx”, line 274, in aiohttp._http_parser.HttpParser.feed_data (aiohttp/_http_parser.c:4364)
File “aiohttp_http_parser.pyx”, line 334, in aiohttp._http_parser.cb_on_url (aiohttp/_http_parser.c:5381)
File “aiohttp_http_parser.pyx”, line 544, in aiohttp._http_parser._parse_url (aiohttp/_http_parser.c:8777)
File “C:\Users\Media\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\http_writer.py”, line 317, in init
path = yarl.quote(path, safe=’@:’, protected=’/’, strict=False)
File “yarl_quoting.pyx”, line 38, in yarl._quoting._quote
TypeError: _quote() got an unexpected keyword argument ‘strict’
2017-11-11 16:45:28 ERROR (MainThread) [aiohttp.server] Error handling request

2

Same just happened here on Ubuntu. It appears that it is because the yarl package was updated to 0.14.0 (from 0.13.0). Downgrade it using pip like so:

pip install --upgrade yarl==0.13.0

Afterwards restart HA and it works again!

https://github.com/home-assistant/home-assistant/issues/10524

1 Like
3

Didn’t seem to solve my problem unfortunately, thanks though.

Edit: It did in fact solve my problem!
I just have a bat file and in there I have “pip3 install --upgrade homeassistant” so every time my PC restarts it will auto update if need be.

That means though that every time I update from now there will be this problem, any idea on how to get around it?

4

This got me too. Trying to downgrade Yarl

5

Downgrade and reboot I’m back in business, phew! On Hassbian.