How to run the Function Parser?

I want to try the function parser in CodeSearchNet/function_parser/ folder. But I don' know how to use it. The guide in the README is

How to run the notebook script/bootstrap or script/server?

I load the CodeSearchNet-master/function_parser/script/bootstrap into Jupyter Notebook and run it. There is an error:

What should I do? Can you give me more information to run the function parser?