Problem with light package

[SchumiDing]

I'm working on a CNN program.
While model is trained, I wanted to use lucent to visualized my antialised vgg 19 model.
However, the lucent package raise a problem about there is no package called "light"
I tried to pip install "light" from different source, but it didn't work out, it seem that the light package has an original issue in it's requirement file.
Does Anyone meet with the same problem and how can I fix it?