Reference no: EM132274424

Merge Dictionaries with Mutation

Now let's build the same function, but this time, instead of creating a new dictionary, modify one of the dictionary to become the combination of both dictionaries under +.

def merge_dict_mutate(d1, d2):
    """Write a function that merge the second dictionary into the first dictionary. You can assume 
    that the same keys appear in both dictionaries. 

    >>> bank = {"Annie":1000, "David":500}
    >>> new_deposits = {"Annie":700, "David":800}
    >>> merge_dict_mutate(bank, new_deposits)
    >>> bank
    {'Annie': 1700, 'David': 1300}
    """
    "*** YOUR CODE HERE ***"