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dataValidation.html
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<title>Python Key Skills - Data Validation</title>
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<div id="content">
<h1 class="title">Python Key Skills - Data Validation</h1>
<div id="outline-container-sec-1" class="outline-2 activity">
<h2 id="sec-1"><span class="section-number-2">1</span> Data Validation</h2>
<div class="outline-text-2" id="text-1">
</div>
<div id="outline-container-sec-1-1" class="outline-3 learn">
<h3 id="sec-1-1">Learn It</h3>
<div class="outline-text-3" id="text-1-1">
<ul class="org-ul">
<li><b>Data Validation</b> means to check data used or entered in a program are valid.
</li>
<li><b>valid</b> can mean different things depending on the context of the program. For example, it could be that your program only accepts alphabetical letters or numbers, or a number that is only within a certain range or a legitimate email address.
</li>
</ul>
</div>
</div>
<div id="outline-container-sec-1-2" class="outline-3 code">
<h3 id="sec-1-2">Code It - example 1: only accepts numbers as input</h3>
<div class="outline-text-3" id="text-1-2">
<ul class="org-ul">
<li>The easiest way of doing this is to use the Python built-in function <b>isnumeric</b>
</li>
</ul>
<iframe src="https://trinket.io/embed/python/97b8fbcea2?start=result" width="100%" height="300" frameborder="0" marginwidth="0" marginheight="0" allowfullscreen></iframe>
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<h3 id="sec-1-3">Code It - example 2: only accepts numbers within expected range</h3>
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<ul class="org-ul">
<li>To accomplish this, we need to use if statements and additional flag (True or False Boolean value)
</li>
</ul>
<iframe src="https://trinket.io/embed/python/23aee6f6c2?start=result" width="100%" height="400" frameborder="0" marginwidth="0" marginheight="0" allowfullscreen></iframe>
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<h3 id="sec-1-4">Code It - example 3: only accepts alphabetical letters</h3>
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<ul class="org-ul">
<li>To accomplish this, we need to use another built-in function <b>isalpha</b>
</li>
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<h3 id="sec-1-5">Try It</h3>
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<li>Can you work out how to validate an input that is alphabetical letters and it can only be not more than 12 characters long?
</li>
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<div id="postamble" class="status">
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