nameerror name 'defaultdict' is not defined
You're not importing defaultdict. Do either:
from collections import defaultdict
or
import collections
d = collections.defaultdict(list)
nameerror name 'defaultdict' is not defined
You're not importing defaultdict. Do either:
from collections import defaultdict
or
import collections
d = collections.defaultdict(list)
nameerror name 'defaultdict' is not defined
import collections
d = collections.defaultdict(int)
d
defaultdict(<type 'int'>, {})
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