<div dir="ltr"><div class="gmail_default" style="color:rgb(0,0,0)"><span style="color:rgb(34,34,34)">On Sat, Mar 24, 2018 at 7:14 AM, Nick Coghlan </span><span dir="ltr" style="color:rgb(34,34,34)"><<a href="mailto:ncoghlan@gmail.com" target="_blank">ncoghlan@gmail.com</a>></span><span style="color:rgb(34,34,34)"> wrote:</span></div><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div class="gmail_default" style="color:rgb(0,0,0);display:inline"></div> >>> class C:<br> ... sequence = range(10)<br> ... listcomp = [x for x in sequence]<br></div></div></div></blockquote><div> </div></div></div><div class="gmail_extra"><div class="gmail_default" style="color:rgb(0,0,0)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">>>> class C:</span><br style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">
<span style="font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(34,34,34);background-color:rgb(255,255,255);float:none;display:inline">... y = 1</span><br style="font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(34,34,34);background-color:rgb(255,255,255)">
<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">
<span style="font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(34,34,34);background-color:rgb(255,255,255);float:none;display:inline">... sequence = range(10)</span><br style="font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;color:rgb(34,34,34);background-color:rgb(255,255,255)">
... listcomp = [x+y for x in sequence]</span>
</div><div class="gmail_default" style="color:rgb(0,0,0)">...</div><div class="gmail_default" style="color:rgb(0,0,0)">Traceback (most recent call last):</div><div class="gmail_default" style="color:rgb(0,0,0)"> File "<stdin>", line 1, in <module></div><div class="gmail_default" style="color:rgb(0,0,0)"> File "<stdin>", line 4, in C</div><div class="gmail_default" style="color:rgb(0,0,0)"> File "<stdin>", line 4, in <listcomp></div><div class="gmail_default" style="color:rgb(0,0,0)">NameError: name 'y' is not defined</div><div class="gmail_default" style="color:rgb(0,0,0)"></div><br></div><div class="gmail_extra"><div class="gmail_default" style="color:rgb(0,0,0)">Ok, so how does 'y' fit into these scoping rules?</div><br></div></div>