Wie betaalt wat

wbw.py

import operator # For sorting my dictionary
bills = {"Kim":392.08,"Peter":71.81,"Mike":48.09,"Roland":5.91,"Yorick":0.0,"Elvira":-74.37,"Lisette":-103.22,"Robert":-340.30}

transactions = 0
while sorted(bills.items(), key=operator.itemgetter(1),reverse=True)[0][1]>0.001:
    transactions+=1
    sorted_bills = sorted(bills.items(), key=operator.itemgetter(1),reverse=True)

    diff_highest_lowest = sorted_bills[0][1]+sorted_bills[-1][1] # Note that array[-1] is the last element of an array (for us: lowest value)
    if diff_highest_lowest > 0: # In this case the lowest amount can't fill the highest amount
        print(sorted_bills[-1][0] + " pays " + sorted_bills[0][0]+ ": " + str(abs(sorted_bills[-1][1]))) # Pay everything you have
        bills[sorted_bills[-1][0]]=0 # The lowest bill is done paying!
        bills[sorted_bills[0][0]] = diff_highest_lowest # The person with the most amount of money still needs to receive money
    else: # The highest amount gets completely paid off. 
        print(sorted_bills[-1][0] + " pays " + sorted_bills[0][0]+ ": " + str(abs(sorted_bills[0][1])))
        bills[sorted_bills[-1][0]]=diff_highest_lowest # The lowest person still has to pay
        bills[sorted_bills[0][0]]=0 # The richest person got all of his money

print("Amount of transactions: " + str(transactions))