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Boston Python Workshop 8/Friday/Tutorial: Difference between revisions
Boston Python Workshop 8/Friday/Tutorial (view source)
Revision as of 23:05, 12 July 2013
, 10 years ago→more choices: if and else
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fish = "humuhumunukunukuapuaʻa"
name_length = len(fish)
fish + " is a Hawaiian fish whose name is " + str(name_length) + " characters long."
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====more choices: <code>if</code> and <code>else</code>====
<b><code>if</code></b>
Use the <b><code>else</code></b> keyword, together with <code>if</code>, to execute different code when the <code>if</code> condition isn't <code>True</code>. Try this:
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====even more choices: <code>elif</code>====
If you need to execute code conditional based on more than two cases, you can use the <b><code>elif</code></b> keyword to check more cases. You can have as many <code>elif</code> cases as you want; Python will go down the code checking each <code>elif</code> until it finds a <code>True</code> condition or reaches the default <code>else</code> block.
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You don't have to have an <code>else</code> block, if you don't need it. That just means there isn't default code to execute when none of the <code>if</code> or <code>elif</code> conditions are <code>True</code>:
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