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initialize dictionary with empty lists

data = {k: [] for k in range(2)}
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python initialize empty dictionary

d = dict()
d = {}
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python create empty dictionary with keys

>>> keys = [1,2,3,5,6,7]
>>> {key: None for key in keys}
{1: None, 2: None, 3: None, 5: None, 6: None, 7: None}
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