<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 30 Jan 2018, at 05:45, Nick Coghlan <<a href="mailto:ncoghlan@gmail.com" class="">ncoghlan@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">I'll also note that one of the things we (and others) *have* been</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">putting quite a bit of time into is the question of "Why do people</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">avoid using extension modules for code acceleration?".</span></div></blockquote></div><br class=""><div class="">I think that is simple. Those that try give up because its a difficult API to</div><div class="">call correctly.</div><div class=""><br class=""></div><div class="">At PYCON UK on speaker explain how she, PhD level researcher,</div><div class="">had failed to get the a C extension working.</div><div class=""><br class=""></div><div class="">I was contacted to improve PyCXX by a contractor for the US Army that stated that he</div><div class="">was called in to help the internal developers get a big library wrapped for use from python.</div><div class=""><br class=""></div><div class="">After 6 months they where no where near working code. He did what was</div><div class="">needed with PyCXX in 3 weeks + the time getting me to make some nice additions to</div><div class="">help him.</div><div class=""><br class=""></div><div class="">It seems that if people find a C++ library that will do the heavy lifting they</div><div class="">end up with extensions. But those that attempt the C API as is seem to fail</div><div class="">and give up. It also seems that people do not go looking for the helper libraries.</div><div class=""><br class=""></div><div class="">Next year at PYCON I hope to give a talk on PyCXX and encourage people to</div><div class="">write extensions.</div><div class=""><br class=""></div><div class="">Barry</div><div class="">PyCXX maintainer.</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div></body></html>