python based project for sales_tax problem
** you will find 5 pyhton programs, 4_one.py 4_two.py 4_three.py 4_four.py 4_five.py input.csv
input.csv file contain input data (row file)*
in first file you will find the complete working code, but code is not modular , all work is done by a sinle method
in later files you will find enhancement with functions and classes
later there is a program to read input.csv through csv reader