`IPython.core.interactiveshell:InteractiveShell.set_custom_completer`

Signature

def set_custom_completer ( self , completer , pos = 0 ) → None

Adds a new custom completer function.

The position argument (defaults to 0) is the index in the completers list where you want the completer to be inserted.

completer should have the following signature

def completion(self: Completer, text: string) -> List[str]:
    raise NotImplementedError

It will be bound to the current Completer instance and pass some text and return a list with current completions to suggest to the user.