Class Chat

Initialize the chatbot. Pairs is a list of patterns and responses. Each pattern is a regular expression matching the user's statement or question, e.g. r'I like (.*)'. For each such pattern a list of possible responses is given, e.g. ['Why do you like %1', 'Did you ever dislike %1']. Material which is matched by parenthesized sections of the patterns (e.g. .*) is mapped to the numbered positions in the responses, e.g. %1.

Parameters:

• pairs (list of tuple) - The patterns and responses
• reflections (dict) - A mapping between first and second person expressions

Returns: None

Overrides: object.__init__

Generate a response to the user input.

Parameters:

• str (string) - The string to be mapped

Returns: string