Fails to work when run in a daemon process.

[hotear]

I have used teslapy to create a process than can either run in the terminal or as a daemon. When I run it in the terminal it successfully talks to the tesla API and starts/stops my car charging. If I run it as a daemon then it no longer works. I think it has something to do with stdin being closed. When running it as a daemon it keeps reporting this error: "EOF when reading a line". If instead of connecting stdin to /dev/null, I connect it to a file containing just a newline then I get this error instead: "Please supply either code or authorization_response parameters.", hence why I think it is related to stdin being closed.

[tdorssers]

The error comes from requests-oauthlib, which is problably caused by a missing token. Can the daemon access the token cache file?

[hotear]

Where will it look for the cache file? Perhaps if it used a fixed location (home directory of the user running the daemon for example) it might find it. I have made a temporary modification to your code locally to make the location of the cache.json file be in /tmp and now the daemon works. So it seems to be that it cannot find the cache file when running as a daemon.