For uberspace users

Some uberspace users experienced problems with isso and they solved their issue by adding DirectoryIndex disabled as the first line in the .htaccess file for the domain the isso server is running on.


This is usually caused by messing up the system’s Python with newer packages from PyPi (e.g. by executing easy_install –upgrade pip as root) and is not related to Isso at all.

Install Isso in a virtual environment as described in Interludium: Python is not PHP. Alternatively, you can use pip install –user to install Isso into the user’s home.

UnicodeDecodeError: ‘ascii’ codec can’t decode byte 0xff

Likely an issue with your environment, check you set your preferred file encoding either in LANG, LANGUAGE, LC_ALL or LC_CTYPE:

$ env LANG=C.UTF-8 isso [-h] [--version] ...

If none of the mentioned variables is set, the interaction with Isso will likely fail (unable to print non-ascii characters to stdout/err, unable to parse configuration file with non-ascii characters and to forth).

The web console shows 404 Not Found responses

That’s fine. Isso returns “404 Not Found” to indicate “No comments”.