Every instance may have a tiddlywebconfig.py located in the working directory of the instance. If twinstance is used to create the instance, it will create a tiddlywebconfig.py for you.

The tiddlywebconfig.py file contains information used to override the TiddlyWeb configuration defaults found in the tiddlyweb.config package. You can read more information about the keys of the configuration file by reading the documentation for that package:

    pydoc tiddlyweb.config

tiddlywebconfig.py is a Python module, containing a dict. At process startup its values are merged over the top of the default config.

In regular usage tiddlywebconfig.py is used to include plugins in your instance, set logging verbosity and control the CSS used on some pages.

If you make changes to your tiddlywebconfig.py you can check that you have not made any syntax errors by performing the following command:

    python tiddlywebconfig.py

If no error messages are given the syntax is okay.