gistfile1.txt

from optparse import OptionParser


parser = OptionParser()

parser.add_option("-m", "--meal", dest="meal", type="float", help="meal cost")

parser.add_option("-t", "--taxrate", dest="tax_rate",
                  type="float", help="tax rate")

(options, args) = parser.parse_args()

#print options
#print args

meal = options.meal
tax_rate = options.tax_rate

tax = tax_rate / 100.0
tip = 5
tax_value = meal * tax
meal_with_tax = meal + tax_value
tip_value = meal * tip / 100.0
total = meal_with_tax + tip_value

print "The base cost for the meal was %0.2f" % meal
print "The tax_rate is %0.2f%%" % tax_rate
print "The tip rate is %s%% which is %0.2f" % (str(tip), tip_value)
#print "The tip rate is {}% which is {:0.2f}".format(tip, tip_value)
#print "The tip rate is {tip}% which is {tip_value:0.2f}".format(tip=tip, tip_value=tip_value)
print "Total US$ %0.2f" % total