I want to create a table in a browser that's been created with python. That part can be done by using DataTable of the bokeh library. The problem is that I want to extract data from the table when a user gives his/her input in the table itself. 
Any library of python I could use to do this? It would better if I could do this with bokeh though.
If your requirement is to create an application using Python and users will access via browser and update some data into a table?
Use Django or any web framework, basically, you are trying to build a web app!!
or
if you are looking for something else do mention your requirement thoroughly.
Extract user input to python from a table created in browser?