final project for cashier system by using python (urgent) half code is available i need someone to finish it by tomorrow

 

let me mention what is missing 

1- GUI has to include the following 

     a- enter the items ( one or more ) 

     b- sum up total cost of the items 

     c- return actual balance from amount paid by customer 

     d- tax compute 

     e- produce the receipt 

2- the items in the list has to have names such as shampoo , etc 

check the attachment for the errors 
3- the order of the receipt should be as following   a- list of the items with the prices   b- total price of the items   c- tax   d- subtotal after tax   e- a thank you message ( thank you for shopping with us ) 

4- there are some small errors in the code and can be fixed easily 

see the pictures to have an idea of what im looking for and i can send you the code i have