-Theatre Revenue- | Python Fiddle

"""======================================================================
Program:
	Theatre Revenue Calculator
Author:
	Chris Brockamp
Date:
	May 9, 2015
Dev Env:
	PyCharm Community Edition 4.0.6
Description:
	Calculates the gross sales for a theatre with multiple seating
======================================================================"""

#_declare constants______________________________________________________
# dollars
SECTION_A_TICKET_PRICE = 20
SECTION_B_TICKET_PRICE = 15
SECTION_C_TICKET_PRICE = 10
# tickets
SECTION_A_LIMIT = 300
SECTION_B_LIMIT = 500
SECTION_C_LIMIT = 200

#_function definitions____________________________________________________
def validate_section_A(section):
    while section < 0 or section > SECTION_A_LIMIT:
        print "\nERROR: You entered an invalid number of tickets sold for section A..."
        section = input("How many tickets were sold in section A: ")
    else:
        return section

def validate_section_B(section):
    while section < 0 or section > SECTION_B_LIMIT:
        print "\nERROR: You entered an invalid number of tickets sold for section B..."
        section = input("How many tickets were sold in section B: ")
    else:
        return section

def validate_section_C(section):
    while section < 0 or section > SECTION_C_LIMIT:
        print "\nERROR: You entered an invalid number of tickets sold for section C..."
        section = input("How many tickets were sold in section C: ")
    else:
        return section

def calculate_total_sales(section_A, section_B, section_C):
    section_A *= SECTION_A_TICKET_PRICE
    section_B *= SECTION_B_TICKET_PRICE
    section_C *= SECTION_C_TICKET_PRICE
    return section_A + section_B + section_C

def display_total_sales(total):
    print("\n***************************")
    print("Total Sales = $%.2f") % float(total)
    print("***************************")

#_Main_____________________________________________________________________
section_a = input("How many tickets were sold in section A: ")
validate_section_A(section_a)
section_b = input("How many tickets were sold in section B: ")
validate_section_B(section_b)
section_c = input("How many tickets were sold in section C: ")
validate_section_C(section_c)
total_sales = calculate_total_sales(section_a, section_b, section_c)
display_total_sales(total_sales)

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