ChatterBot’s preprocessors are simple functions that modify the input statement that a chat bot receives before the statement gets processed by the logic adaper.

Here is an example of how to set preprocessors. The preprocessors parameter should be a list of strings of the import paths to your preprocessors.

chatbot = ChatBot(
    'Bob the Bot',

Preprocessor functions

ChatterBot comes with several built-in preprocessors.

Creating new preprocessors

It is simple to create your own preprocessors. A preprocessor is just a function with a few requirements.

  1. It must take one parameter, a Statement instance.
  2. It must return a statement instance.