dankrause

class _ExceptionHandlerBase:
    def __init__(self, handler_map):
        self._handler_map = handler_map

    def __call__(self, func):
        def wrapper(*args, **kwargs):
            with self:
                func(*args, **kwargs)

        return wrapper

hrldcpr

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!