Scoping for Python

Scope.py

class Scope:
    """ Implementation of scoping. Use it with `with` statement:
        
        ```
          with Scope() as s:
            s.var = 10
            print(s.var)
        ```
    """
    def __init__(self):
        self._ = dict()
    def __enter__(self):
        return self
    def __getattr__(self, key):
        if key != "_":
            return self._[key]
        else:
            super(Scope, self).__getattr__(key)
    def __setattr__(self, key, val):
        if key != "_":
            self._.update({key: val})
        else:
            super(Scope, self).__setattr__(key, val)
    def __exit__(self, type, value, traceback):
        self._ = dict()