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4432228
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0
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2010-12-13T18:33:20.400
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2018-08-25T04:05:52.830
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2018-08-25T04:05:52.830
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444036
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444036
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PostTypeId
2
Score
32
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0
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text
Body
An expression like 'x % y' evaluates to the remainder of 'x / y'. Precedence rules are like '/' and '*'. <pre><code>>>> 9 / 2 4 >>> 9 % 2 1 </code></pre> <ul> <li>9 divided by 2 is equal to 4.</li> <li>4 times 2 is 8</li> <li>9 minus 8 is 1 - the remainder.</li> </ul> Python gotcha: depending on the Python version you are using, <code>%</code> is also the (deprecated) string interpolation operator, so watch out if you are coming from a language with automatic type casting (like PHP or JS) where an expression like <code>'12' % 2 + 3</code> is legal: in Python it will result in <code>TypeError: not all arguments converted during string formatting</code> which probably will be pretty confusing for you. [update for Python 3] User n00p comments: <blockquote> 9/2 is 4.5 in python. You have to do integer division like so: 9//2 if you want python to tell you how many whole objects is left after division(4). </blockquote> To be precise, integer division used to be the default in Python 2: <pre><code>$ python2.7 Python 2.7.10 (default, Oct 6 2017, 22:29:07) [GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.31)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> 9 / 2 4 >>> 9 // 2 4 >>> 9 % 2 1 </code></pre> In Python 3 now <code>9 / 2</code> results <code>4.5</code> indeed, but keep in mind the original answer is very old. <pre><code>$ python3.6 Python 3.6.1 (default, Apr 27 2017, 00:15:59) [GCC 4.2.1 Compatible Apple LLVM 8.1.0 (clang-802.0.42)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> 9 / 2 4.5 >>> 9 // 2 4 >>> 9 % 2 1 </code></pre>
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1. POHow does % work in Python?
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1. USPaulo Scardine
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1. USPaulo Scardine
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1. COCan you please explain using an example. Sorry. :(
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