<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Alex,<div class=""><br class=""></div><div class=""> There were in fact two problems in the unit cell example code caused by changes in Chimera Python APIs over the years. I’ve updated the example — the web site will be updated over night. The fixed code is attached. Thanks for reporting the problem.</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Tom</div><div class=""><br class=""></div><div class=""></div></body></html>