This is a command line utility to that prints out the receipt details for a shopping basket.
The receipt is the list of all the items and their price (including tax), finishing with the total cost of the items, and the total amounts of sales taxes paid.
The program reads the input via the standard input, so you can use pipes and othe shell's input/ouput redirects:
python3 print_receipt.py < input_file
# or
cat input_file | python3 print_receipt.py
Basic sales tax is applicable at a rate of 10% on all goods, except books, food, and medical products that are exempt. Import duty is an additional sales tax applicable on all imported goods at a rate of 5%, with no exemptions.
The rounding rules for sales tax are that for a tax rate of n%, a shelf price of p contains (np/100 rounded up to the nearest 0.05) amount of sales tax.
Create your local environment with virtualenv, then install all the required packages:
python3 -m venv .venv
. .venv/bin/activate
pip install -r dev_requirements.txt
To execute the tests use pytest.