This assignment does not require you to write any Python code or your own SQL instructions. After installing the SQLite Brower, sequentially type in the given SQL instructions, you can get the expected results.      

Assignment 15-2: Counting Email in a Database

After running the Python code above, you can get a database of the name ''emaildb.sqlite'' and the following result. 

 Open the database by SQLite, you can verify the result by Python.