#We are now ready to begin writing the code that interacts with the player.
# We'll be implementing the playHand function. 
# This function allows the user to play out a single hand. 
# First, though, you'll need to implement the helper calculateHandlen function, 
# which can be done in under five lines of code.

def calculateHandlen(hand):
    """ 
    Returns the length (number of letters) in the current hand.
    
    hand: dictionary (string int)
    returns: integer
    """
    sum=0
    dict=hand.copy()
    for key in dict:
        sum+=dict[key]
    return sum
