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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Thank you all for considering this code. Note that one works, and here is the failure for the other. It appears when you use concrete classes and not interfaces, it works. The interface does not have the method. We will have to figure out some kind of casting scheme, I think.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>John</p><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:0in 0in 0in 0in'><div style='border:solid windowtext 1.0pt;padding:1.0pt 1.0pt 1.0pt 1.0pt' id=vt100><pre style='line-height:111%;background:black'><span class=od><span style='color:#BFBFBF'>processScene.python: </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=ev><span style='color:#BFBFBF'> [exec] Warning: meta name newValue="CML version" has an unrecognized value </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=od><span style='color:#BFBFBF'>not matching any of the optional string tokens. </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=ev><span style='color:#BFBFBF'> [exec] Traceback (most recent call last): </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=od><span style='color:#BFBFBF'> [exec] File "C:\x3d-code\www.web3d.org\x3d\content\examples\Basic\Chemica</span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=ev><span style='color:#BFBFBF'>lMarkupLanguage\GlycerolDiacetate.future.py", line 90, in </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=od><span style='color:#BFBFBF'> [exec] .setDEF("atoC") \ </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=ev><span style='color:#BFBFBF'> [exec] AttributeError: 'org.web3d.x3d.sai.Grouping.X3DGroupingNode' object </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=od><span style='color:#BFBFBF'>has no attribute 'setIS' </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=ev><span style='color:#BFBFBF'> [exec] Result: 1 </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=od><span style='color:#BFBFBF'> [echo] C:\x3d-code\www.web3d.org\x3d\content\examples\Basic\ChemicalMarkupL</span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre><pre style='line-height:111%;background:black'><span class=ev><span style='color:#BFBFBF'>anguage\GlycerolDiacetate.future.py </span></span><span style='color:#BFBFBF'><o:p></o:p></span></pre></div></td></tr></table></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><p class=MsoNormal><o:p> </o:p></p></div></body></html>