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    <p>I was able to install the 4.0.44 release after uninstalling
      4.0.43</p>
    <p>I hope good reports now.</p>
    <p>!!<br>
    </p>
    <div class="moz-cite-prefix">On 12/6/21 00:08, Brutzman, Donald
      (Don) (CIV) wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:BY3PR13MB488469062552F7613EBAD1C7C46D9@BY3PR13MB4884.namprd13.prod.outlook.com">
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        <p class="MsoNormal">Thanks for reports and correct diagnosis. 
          I did take out the three “object” inheritances earlier today,
          pylint says it is no longer required in Python 3, no ill
          effects noted.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">I have tried to follow X3D4 Architecture
          exactly, and am keen to avoid overwriting!  Hopefully
          tonight’s build looks a bit better.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">The specification does not show X3DField
          inheriting from anything.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <ul style="margin-top:0in" type="disc">
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">X3D4
            Architecture, 5.2.3 X3DField<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1"><a class="moz-txt-link-freetext" href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/fieldTypes.html#X3DField">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/fieldTypes.html#X3DField</a><o:p></o:p></li>
        </ul>
        <p class="MsoNormal"><o:p> </o:p></p>
        <ul style="margin-top:0in" type="disc">
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">X3D4
            Architecture, 54.4.2.3 Interface hierarchy
            <o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">(looks like
            first line of Figure 4.2 needs more whitespace)<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1"><a class="moz-txt-link-freetext" href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/concepts.html#InterfaceHierarchy">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/concepts.html#InterfaceHierarchy</a><o:p></o:p></li>
        </ul>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Sure enough, searching for “class _
          X3DField” in x3d.py reveals two abstract class definitions,
          ouch!  That’s more like multiple personalities that multiple
          inheritance…<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Will work on fixing the autogeneration of
          offending version.<o:p></o:p></p>
        <div>
          <p class="MsoNormal"><span
              style="font-size:10.0pt;font-family:"Courier
              New",serif"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span
              style="font-size:10.0pt;font-family:"Courier
              New",serif">all the best, Don<o:p></o:p></span></p>
          <p class="MsoNormal"><span
              style="font-size:10.0pt;font-family:"Courier
              New",serif">--
              <o:p></o:p></span></p>
          <p class="MsoNormal"><span
              style="font-size:10.0pt;font-family:"Courier
              New",serif">Don Brutzman  Naval Postgraduate School,
              Code USW/Br        <a class="moz-txt-link-abbreviated" href="mailto:brutzman@nps.edu">brutzman@nps.edu</a><o:p></o:p></span></p>
          <p class="MsoNormal"><span
              style="font-size:10.0pt;font-family:"Courier
              New",serif">Watkins 270,  MOVES Institute, Monterey
              CA 93943-5000 USA    +1.831.656.2149<o:p></o:p></span></p>
          <p class="MsoNormal"><span
              style="font-size:10.0pt;font-family:"Courier
              New",serif">X3D graphics, virtual worlds, navy
              robotics https://</span>
            <span style="font-size:10.0pt;font-family:"Courier
              New",serif">faculty.nps.edu/brutzman<o:p></o:p></span></p>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
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          <div style="border:none;border-top:solid #E1E1E1
            1.0pt;padding:3.0pt 0in 0in 0in">
            <p class="MsoNormal"><b>From:</b> <a class="moz-txt-link-abbreviated" href="mailto:vmarchetti@kshell.com">vmarchetti@kshell.com</a>
              <a class="moz-txt-link-rfc2396E" href="mailto:vmarchetti@kshell.com"><vmarchetti@kshell.com></a> <br>
              <b>Sent:</b> Sunday, December 5, 2021 3:59 AM<br>
              <b>To:</b> John Carlson <a class="moz-txt-link-rfc2396E" href="mailto:yottzumm@gmail.com"><yottzumm@gmail.com></a><br>
              <b>Cc:</b> Brutzman, Donald (Don) (CIV)
              <a class="moz-txt-link-rfc2396E" href="mailto:brutzman@nps.edu"><brutzman@nps.edu></a>; X3D-Public
              <a class="moz-txt-link-rfc2396E" href="mailto:x3d-public@web3d.org"><x3d-public@web3d.org></a><br>
              <b>Subject:</b> Re: [x3d-public] Results for today with
              x3d.py, _X3DField<o:p></o:p></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <p class="MsoNormal">Python does support multiple inheritance,
            but these fragments are not an example of a
            multiple-inheritance situation -- rather, the later class
            definition -- where _X3DField is a subclass of _X3DNode,
            overwrites the earlier class definition.
            <o:p></o:p></p>
          <div>
            <p class="MsoNormal"><o:p> </o:p></p>
          </div>
          <div>
            <p class="MsoNormal">In the x3d.py file, only three classes
              are defined as direct subclasses of object:<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal"><o:p> </o:p></p>
          </div>
          <div>
            <p class="MsoNormal">class _X3DField<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal">class _X3DNode<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal">class _X3DStatement<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal"><o:p> </o:p></p>
          </div>
          <div>
            <p class="MsoNormal">So I think the operative question is
              whether it is a design intent that _X3DField also should
              be a subclass of _X3DNode.  I judge the answer is no,
              since that would include support for DEF, USE, and
              metadata. In that light, the second class defintion for
              _X3DField would be regarded as a bug, to be corrected by
              modifying the X3duomToX3dPythonPackage.xslt stylesheet.<o:p></o:p></p>
          </div>
          <div>
            <div>
              <div>
                <div>
                  <p class="MsoNormal"><br>
                    <br>
                    <o:p></o:p></p>
                  <blockquote
                    style="margin-top:5.0pt;margin-bottom:5.0pt">
                    <div>
                      <p class="MsoNormal">On Dec 4, 2021, at 11:40 PM,
                        John Carlson <<a
                          href="mailto:yottzumm@gmail.com"
                          moz-do-not-send="true"
                          class="moz-txt-link-freetext">yottzumm@gmail.com</a>>
                        wrote:<o:p></o:p></p>
                    </div>
                    <p class="MsoNormal"><o:p> </o:p></p>
                    <div>
                      <div>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                            style="font-family:"Courier
                            New",serif;color:black;background:white">Two
                            declarations of _X3DField?</span><o:p></o:p></p>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                            style="font-family:"Courier
                            New",serif;color:black;background:white">$
                            grep "class _X3DField" x3d.py          </span><o:p></o:p></p>
                        <div>
                          <p class="MsoNormal"><o:p> </o:p></p>
                        </div>
                        <p class="MsoNormal"><b><span
                              style="font-family:"Courier
                              New",serif;color:#FF5454;background:white">class
                              _X3DField</span></b><span
                            style="font-family:"Courier
                            New",serif;color:black;background:white">(object):
                          </span><o:p></o:p></p>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span
                              style="font-family:"Courier
                              New",serif;color:#FF5454;background:white">class
                              _X3DField</span></b><span
                            style="font-family:"Courier
                            New",serif;color:black;background:white">(_X3DNode):</span><o:p></o:p></p>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                            style="font-family:"Courier
                            New",serif;color:black;background:white">Is
                            there a pylint?</span><o:p></o:p></p>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                            style="font-family:"Courier
                            New",serif;color:black;background:white">Isn't
                            multiple inheritance possible?</span><o:p></o:p></p>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                            style="font-family:"Courier
                            New",serif;color:black;background:white">Thanks!</span><o:p></o:p></p>
                        <p class="MsoNormal"
                          style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
                            style="font-family:"Courier
                            New",serif;color:black;background:white">John</span><o:p></o:p></p>
                        <div>
                          <p class="MsoNormal"><o:p> </o:p></p>
                        </div>
                      </div>
                      <p class="MsoNormal">_______________________________________________<br>
                        x3d-public mailing list<br>
                        <a href="mailto:x3d-public@web3d.org"
                          moz-do-not-send="true"
                          class="moz-txt-link-freetext">x3d-public@web3d.org</a><br>
                        <a
                          href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org"
                          moz-do-not-send="true"
                          class="moz-txt-link-freetext">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a><o:p></o:p></p>
                    </div>
                  </blockquote>
                </div>
                <p class="MsoNormal"><o:p> </o:p></p>
              </div>
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        </div>
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    </blockquote>
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