A context manager-based case statement

I wanted to have a post with some code in, for testing purposes, so here is a little something I put together based on this Programmers.SE question. Switch (ab?)uses Python's context manager with statement syntax to implement a rough approximation of the switch available in some other languages.

Also available as a Gist.

:::python
class Switch(object):
    """A class for faking switch syntax with a context manager.

    Args:
      value (object): The stored value to compare any cases to.

    Example:

        >>> with Switch(1) as case:
        ...     if case(1):
        ...         print('unity')
        ...
        unity
        >>> with Switch(3) as case:
        ...     if case(1):
        ...         print('unity')
        ...     elif case(2, 3, 4):
        ...         print('small')
        ...
        small
        >>> with Switch(5) as case:
        ...     if case(1):
        ...         print('unity')
        ...     elif case(2, 3, 4):
        ...         print('small')
        ...     else:
        ...         print('more than four')
        ...
        more than four

    """

    def __init__(self, value):
        """Create a new Switch instance."""
        self.value = value

    def __call__(self, *cases):
        """Do any of the supplied cases match the stored value?"""
        return any(case == self.value for case in cases)

    def __enter__(self):
        """Enter the context manager."""
        return self

    def __exit__(self, typ, value, traceback):
        """Don't do anything when leaving the context manager."""
        pass

A context manager-based case statement

Comments !