Assignment

Here is what you need to do:

HP Norton has experienced explosive growth as a result of the excellent system that has been developed for the company. However, that has brought its own problems. Periodically the system is running slow. Initial investigations have have not been able to identify a root cause. But the database is suspected to be a culprit (although whether it is customers or products is not clear.

In order to diagnose the issues the HP Norton developer want to easily as some timing information to record what the system is actually doing and to help identify the bottlenecks. And metaprogramming seems to be a good way to unobtrusively add this functionality to the existing application.

For this assignment, you will use metaprogramming to add timing information to the HP Norton application, using the code samples from lesson 5.

Your program, called database.py, must output details of timing for all functions in the program. Gather this data and write it to a file called timings.txt. The file should contain function name, time taken, and number of records processed.

Be sure to demonstrate how the timing changes with differing number of records (you can copy and duplicate the data provided in the lesson 5 csv files so you have more data to deal with. It’s easy to do that. Be sure to show widely different numbers of records). Make some notes on your conclusions.

Submission

Submit your revised database.py, the output file and your conclusions.

Tips

• Remember to write the code from the perspective of another developer who will use it.

• Such a developer needs to use your features transparently.