<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Tone,<div class=""> I suspect that you are correct in that this is likely a system problem. As you can see below, both the itk and iwidgets packages cannot be found using tclsh. I am a little confused though in that using the “package require itk” or “package require iwidgets” input, no version is specified. As you can see from the yum/dnf output below both packages are installed although they may be not the most up to date. Shouldn’t the “package require itk” work for any version of itk? Is this a hint that something else is strange?</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><div class="">% tclsh</div><div class="">% package require Tk</div><div class="">8.6.12</div><div class="">% package require Itcl</div><div class="">4.2.2</div><div class="">% package require Itk</div><div class="">can't find package Itk</div><div class="">% package require Iwidgets</div><div class="">can't find package Iwidgets</div><div class="">% exit</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">(pymatgen) paulfons@muon:/data>dnf list installed "itk-devel*"</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Installed Packages</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">itk-devel.x86_64 3.4-9.el7 @System</span></div></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">(pymatgen) paulfons@muon:/data>dnf list installed "iwidgets*"</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Installed Packages</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">iwidgets.noarch 4.0.2-9.el7 @System</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div></span></div><div><br class=""><blockquote type="cite" class=""><div class="">On Apr 13, 2022, at 23:13, Tone Kokalj <<a href="mailto:tone.kokalj@ijs.si" class="">tone.kokalj@ijs.si</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">On Wed, 2022-04-13 at 22:19 +0900, フォンスポール Ｊ wrote:<br class=""><blockquote type="cite" class="">Thank you for your suggestion. The tclsh results show iwidgets is<br class="">not installed, but as you can see below iwidgets is installed. Is<br class="">this a problem with upper and lower case as there is no Iwidgets<br class="">installation possible according to yum (or dnf).<br class=""></blockquote><br class="">The name of the yum/dnf package is iwidgets, but in Tcl the package<br class="">names are capitalized, hence Iwidgets. You may try with "package<br class="">require iwidgets" though.<br class=""><br class="">Anyway this seems to be a system rather then the pwgui problem.<br class="">Iwidgets depends on several other packages, hence you may try to load<br class="">them sequentially to see where it fails:<br class=""><br class="">tclsh<br class="">package require Tk<br class="">package require Itcl<br class="">package require Itk<br class="">package require Iwidgets<br class=""><br class=""><br class="">Best regards, Tone<br class="">-- <br class="">Jožef Stefan Institute, Ljubljana, Slovenia<br class=""><br class=""><br class=""><br class=""><br class="">________________________________________________<br class="">The Quantum ESPRESSO community stands by the Ukrainian people<br class=""> and expresses its concerns about the devastating effects that<br class="">the Russian military offensive has on their country and on the<br class="">free and peaceful scientific, cultural, and economic cooperation<br class="">amongst peoples.<br class="">_______________________________________________<br class="">developers mailing list<br class=""><a href="mailto:developers@lists.quantum-espresso.org" class="">developers@lists.quantum-espresso.org</a><br class="">https://lists.quantum-espresso.org/mailman/listinfo/developers<br class=""></div></div></blockquote></div><br class=""></div></body></html>