notgiven 0.0.2

Micro library that defines NotGiven and NOT_GIVEN

NotGiven and NOT_GIVEN

pip install notgiven

from notgiven import (
    NotGiven,
    NOT_GIVEN,
    is_given,
    is_not_given,
    is_given_guard,
    is_not_given_guard,
)

The details

• NOT_GIVEN is the only instance of NotGiven
• NOT_GIVEN is falsy (if NOT_GIVEN always returns False)
• Pickling/unpickling, copying, and deepcopying NOT_GIVEN all return the same value.
• NOT_GIVEN's string representation is "NOT_GIVEN"
• NOT_GIVEN has no slots, so attributes may not be set on it.
• Cannot instantiate NotGiven
• Cannot subclass NotGiven