<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><div style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;"><div>I ran into this issue as well as asked on here not too long ago, there is a bug in the pyqt-bundle that packages the wrong MS DLLs. Replace these DLLs in the Qt/bin folder: concrt140, mscvp140, and vcruntime140 with the ones from 5.13.<br></div><div><br></div><div data-zbluepencil-ignore="true" style="" class="zmail_extra"><div><br></div><div id="Zm-_Id_-Sgn1">---- On Mon, 16 Mar 2020 21:23:29 -0500 <b>Doug Bell <dougb@bellz.org></b> wrote ----<br></div><div><br></div><blockquote style="border-left: 1px solid rgb(204, 204, 204); padding-left: 6px; margin: 0px 0px 0px 5px;"><div>Hi,<br><br>I've run PyQt on an older PC with Windows 10 for a long time. But after<br>installing PyQt 5.14.1 on a Python 3.8 32-bit install (using "pip<br>install PyQt5"), I get the following error when trying to run any PyQt<br>application:<br><br> ImportError: DLL load failed while importing QtCore: %1 is not a<br> valid Win32 application.<br><br>Installing PyQt 5.14.0 gives the same result, but it works fine after<br>installing PyQt 5.13.2, with no other changes.<br><br>Any ideas? Did something change in PyQt 5.14?<br><br>Thanks,<br>Doug<br>_______________________________________________<br>PyQt mailing list <a target="_blank" href="mailto:PyQt@riverbankcomputing.com">PyQt@riverbankcomputing.com</a><br><a target="_blank" href="https://www.riverbankcomputing.com/mailman/listinfo/pyqt">https://www.riverbankcomputing.com/mailman/listinfo/pyqt</a><br></div></blockquote></div><div><br></div></div><br></body></html>