code: def normalize(vector):
      '''Normalizes the `vector` so that its length is 1. `vector` can have
      any number of components.
      '''
      d = sum(x * x for x in vector) ** 0.5
      return tuple(x / d for x in vectorf normalize(vector):
      '''Normalizes the `vector` so that its length is 1. `vector` can have
      any number of components.
      '''
      d = sum(x * x for x in vector) ** 0.5
      return tuple(x / d for x in vector)
docs: Normalizes the `vector` so that its length is 1. `vector` can have
      any number of components.