The primary reason one would want to integrate a python application into QlikSense is so that Users can interact with the python application from Qlik's U.I.
For example: You want a dashboard to display python calculations, based on a user's inputs. The inputs get passed back to the Python application and get calculated, and return to alter your visualizations.
If that is what you need I would refer to Sushants links.
To me it sounds like you are using python to create a report in excel and just want that data to display in QlikSense. You could create a file connection in a directory. Then have the Python script update the excel file in the directory, schedule a reload based on your needs, etc.