<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Mar 21, 2016 at 5:56 PM, Tim Peters <span dir="ltr"><<a href="mailto:tim.peters@gmail.com" target="_blank">tim.peters@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div id=":us" class="a3s" style="overflow:hidden">I've seen this trigger,<br>
from C code that had no idea it was playing with None, but just had<br>
general refcounting errors. So this does serve a debugging purpose,<br>
although rarely</div></blockquote></div><br>You probably have a better refcounting sense that I do, but I see this quite often when I hack C code and I find this behavior quite useful when debugging.</div></div>