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# Collections

Import directives



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import collections

Ordered dictionaries

See https://docs.python.org/3/library/collections.html#collections.OrderedDict



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d = collections.OrderedDict()

d["2"] = 2
d["3"] = 3
d["1"] = 1

print(d)

print(type(d.keys()))
print(list(d.keys()))

print(type(d.values()))
print(list(d.values()))

for k, v in d.items():
    print(k, v)