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your-first-python-program.html

@@ -275,7 +275,7 @@ SyntaxError: non-keyword arg after keyword arg</samp></pre>
 <pre class=nd><code class=pp>if size &lt; 0:
     raise ValueError('number must be non-negative')</code></pre>
 
-<p>The syntax for raising an exception is simple enough. Use the <code>raise</code> statement, followed by the exception name, and an optional human-readable string for debugging purposes. The syntax is reminiscent of calling a function. (In reality, exceptions are implemented as classes, and this <code>raise</code> statement is actually creating an instance of the <code>ValueError</code> class and passing the string <code>'number must be non-negative'</code> to its initialization method. But <a href=iterators.html#defining-classes>we&#8217;re getting ahead of ourselves</a><span class=u>&#8202;</span><em>!</em><span class=u>&#8202;</span>)
+<p>The syntax for raising an exception is simple enough. Use the <code>raise</code> statement, followed by the exception name, and an optional human-readable string for debugging purposes. The syntax is reminiscent of calling a function. (In reality, exceptions are implemented as classes, and this <code>raise</code> statement is actually creating an instance of the <code>ValueError</code> class and passing the string <code>'number must be non-negative'</code> to its initialization method. But <a href=iterators.html#defining-classes>we&#8217;re getting ahead of ourselves</a>!)
 
 <blockquote class=note>
 <p><span class=u>&#x261E;</span>You don&#8217;t need to handle an exception in the function that raises it. If one function doesn&#8217;t handle it, the exception is passed to the calling function, then that function&#8217;s calling function, and so on &#8220;up the stack.&#8221; If the exception is never handled, your program will crash, Python will print a &#8220;traceback&#8221; to standard error, and that&#8217;s the end of that. Again, maybe that&#8217;s what you want; it depends on what your program does.