abv-calculator.py

# -*- coding: utf-8 -*-
# ABV 1.0 12/31/2012
# This is one of my very first side projects as a programmer/developer!

print '''
Calculate the Alcohol by Volume (ABV) of your
homebrewed beer using the following formula:
ABV = ((((OG-FG)*1.05)/FG)/0.79)*100
1.05 g — the amount of CO2 per gram of ethanol produced
0.79 g/mL  – the density of ethanol alcohol
 '''
OG = input('Enter the Original Gravity (OG): ')
Otemp = input('  Temperature (F) at Reading: ')
if Otemp < 60:
    OG = OG - 0.001
elif 70 <= Otemp <= 80:
    OG = OG + 0.001
elif Otemp > 80:
    OG = OG + 0.002
FG = input('Enter the Final Gravity (FG): ')
Ftemp = input('  Temperature (F) at Reading: ')
if Ftemp < 60:
    FG = FG - 0.001
elif 70 <= Ftemp <= 80:
    FG = FG + 0.001
elif Ftemp > 80:
    FG = FG + 0.002
print '''
''' 'ABV = '+str(round(((((OG-FG)*1.05)/FG)/0.79)*100,1))+'''%
 '''