<p>Except that people generally don&#39;t seem to agree what constitutes &#39;exceptional&#39;, even when disregarding the python world...</p>
<div class="gmail_quote">On Aug 19, 2013 9:24 PM, &quot;Brandon Allbery&quot; &lt;<a href="mailto:allbery.b@gmail.com">allbery.b@gmail.com</a>&gt; wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">On Mon, Aug 19, 2013 at 2:59 PM,  <span dir="ltr">&lt;<a href="mailto:jabolopes@google.com" target="_blank">jabolopes@google.com</a>&gt;</span> wrote:<br><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

I&#39;d say that if you were in the context of the IO monad, maybe you&#39;d<br>
prefer to use exceptions instead of &#39;Either&#39; or &#39;Maybe&#39;.<br></blockquote><div><br></div><div>Even in IO, exceptions should be reserved for truly exceptional conditions (of the &quot;program cannot safely continue&quot; variety), not merely for error checking when this can be described as a normal flow of evaluation. Exceptions are not simply alternative flow of control, even in procedural languages; they are *disruptions* of flow of control.</div>

</div><div><br></div>-- <br><div dir="ltr"><div>brandon s allbery kf8nh                               sine nomine associates</div><div><a href="mailto:allbery.b@gmail.com" target="_blank">allbery.b@gmail.com</a>                                  <a href="mailto:ballbery@sinenomine.net" target="_blank">ballbery@sinenomine.net</a></div>

<div>unix, openafs, kerberos, infrastructure, xmonad        <a href="http://sinenomine.net" target="_blank">http://sinenomine.net</a></div></div>
</div></div>
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