*= operator

Newsgroups	comp.lang.python
Date	2015-11-21 05:20 -0800
Message-ID	<a76b1b5b-4321-41bb-aeca-0dac787752d9@googlegroups.com> (permalink)
Subject	*= operator
From	Cai Gengyang <gengyangcai@gmail.com>

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This is a piece of code that calculates tax and tip :

def tax(bill):
    """Adds 8% tax to a restaurant bill."""
    bill *= 1.08
    print "With tax: %f" % bill
    return bill

def tip(bill):
    """Adds 15% tip to a restaurant bill."""
    bill *= 1.15
    print "With tip: %f" % bill
    return bill
    
meal_cost = 100
meal_with_tax = tax(meal_cost)
meal_with_tip = tip(meal_with_tax)

Does bill *= 1.08 mean bill = bill * 1.15 ?

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*= operator Cai Gengyang <gengyangcai@gmail.com> - 2015-11-21 05:20 -0800
  Re: *= operator BartC <bc@freeuk.com> - 2015-11-21 13:37 +0000
  Re: *= operator Steven D'Aprano <steve@pearwood.info> - 2015-11-22 00:39 +1100
    Re: *= operator Joel Goldstick <joel.goldstick@gmail.com> - 2015-11-21 08:58 -0500
  Re: *= operator "Frank Millman" <frank@chagford.com> - 2015-11-21 15:46 +0200
    Re: *= operator Cai Gengyang <gengyangcai@gmail.com> - 2015-11-21 05:55 -0800

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