(self)
Remove and return an item pair from maps[0]. Raise KeyError is maps[0] is empty.
Remove and return an item pair from maps[0]. Raise KeyError is maps[0] is empty.
Remove and return an item pair from maps [ 0 ] . Raise KeyError is maps [ 0 ] is empty .
def popitem(self):
        'Remove and return an item pair from maps[0]. Raise KeyError is maps[0] is empty.'
        try:
            return self.maps[0].popitem()
        except KeyError:
            raise KeyError('No keys found in the first mapping.')
def popitem ( self ) : try : return self . maps [ 0 ] . popitem ( ) except KeyError : raise KeyError ( 'No keys found in the first mapping.' )