As we have seen in an earlier chapter, dictionaries are iterable and so can be used with for-loops. The dictionary yields only the key on each iteration, and it's up to us to retrieve the corresponding value by lookup using the square-brackets operator:

>>> colors = dict(aquamarine='#7FFFD4', burlywood='#DEB887',
...               chartreuse='#7FFF00', cornflower='#6495ED',
...               firebrick='#B22222', honeydew='#F0FFF0',
...               maroon='#B03060', sienna='#A0522D')
>>> for key in colors:
...     print("{key} => {value}".format(key=key, value=colors[key]))
...
firebrick => #B22222
maroon => #B03060
aquamarine => #7FFFD4
burlywood => #DEB887
honeydew => #F0FFF0
sienna => #A0522D
chartreuse => #7FFF00
cornflower => #6495ED

Notice that the keys are returned in an arbitrary order which is neither the order in which they were specified nor any other meaningful sort order.