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def complicated_dot(v, w):
dot = 0
for (v_i, w_i) in zip(v, w):
for x in v_i.iter():
if x in w_i:
dot += v_i[x] + w_i[x]
return float(dot)
I’m getting an error that says:
AttributeError: 'dict' object has no attribute 'iter'
It has
iter. But you can just write