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List = [H4, C9, S4, D2]
Dictionary = {key: int(value) for key, value in List}
# Output:
# {'H': 4, 'C': 9, 'S': 4, 'D': 2}
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my_dictionary = dict(map(lambda kv: (kv[0], f(kv[1])), my_dictionary.iteritems()))
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state = {"Domestic": 0, "International": 1} #dictionary for mapping
General['International Student'] = df['10'].map(state)