When running the following Python code I am getting an error when the quantity of either the A widget or B widget is negative, instead of it printing the error statement.

def user_input(): name=input("Enter name: ") wA=int(input("Enter quantity of widget A ordered: ")) while(wA<=0): wA=int(input("Invalid...Please enter positive quantity",name)) wB=int(input("Enter quantity of widget B ordered: ")) while(wB<=0): wB=int(input("Invalid...Please enter positive quantity",name)) ch=input("Is this order for out of state(Y/N)? ") return name,wA,wB,ch def disc(wA,wB,code) : discount_A=discount_B=0 if(wA>10): discount_A=(wA*int(code[0])) if(wB>5): discount_B=(wB*int(code[1])) return discount_A, discount_B

def sales_tax(ch,price): t=0 if(ch=='N'): t=price*7.5/100 else: t=price**5/100 return t

def shipping(ch,w): ship=0 if(ch=='Y'): ship=2*w else: ship=1.15*w return ship

def total_cost(): widgetA=0 widgetB=0 code='23' ship=0 tax=0 handling_cost=12.50 name,A,B,c=user_input() discountA,discountB=disc(A,B,code) widgetA=17*A-discountA widgetB=23*B-discountB tax=sales_tax(c,widgetA+widgetB) ship=shipping(c,A+B) print("..........%s.........."%name) print("Quantity of widget A ordered: ",A) print("Quantity of widget B ordered: ",B) print("Discount on quantity of widget A: $",discountA) print("Discount on quantity of widget B: $",discountB) print("Total cost of widget A after discount: $",widgetA) print("Total cost of widget B after discount: $",widgetB) print("Sales tax on total cost: $",tax) print("Shipping on total cost: $ %.2f"%ship) print("Handling cost: $",handling_cost) total_price=widgetA+widgetB+tax+ship+handling_cost return total_price print("Total cost: $ %.2f"%total_cost())