<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>The reason the non-*.future.py Python files work is because the return value from SAI methods is ignored.</p><p class=MsoNormal>Otherwise, they would have the same issue as the future.py files.</p><p class=MsoNormal><br>I have not changed the PythonSerializer.js, only PythonPipeliningSerializer.js</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 style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:yottzumm@gmail.com">John Carlson</a><br><b>Sent: </b>Monday, April 22, 2019 11:34 PM<br><b>To: </b><a href="mailto:brutzman@nps.edu">Brutzman, Donald (Don) (CIV)</a><br><b>Cc: </b><a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a><br><b>Subject: </b>RE: [x3d-public] Sample X3D Python API;examplespublishedforcontinuingimprovement</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>But I removed uses of SAI, and it seems to be working a LOT better.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>John<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<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From: </b><a href="mailto:yottzumm@gmail.com">John Carlson</a><br><b>Sent: </b>Monday, April 22, 2019 11:34 PM<br><b>To: </b><a href="mailto:brutzman@nps.edu">Brutzman, Donald (Don) (CIV)</a><br><b>Cc: </b><a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a><br><b>Subject: </b>RE: [x3d-public] Sample X3D Python API;examplespublishedforcontinuing improvement<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Yes, I am using the X3DViewpointNode. It’s returned in the SAI interface contract.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>John<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<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From: </b><a href="mailto:brutzman@nps.edu">Brutzman, Donald (Don) (CIV)</a><br><b>Sent: </b>Monday, April 22, 2019 10:57 PM<br><b>To: </b><a href="mailto:yottzumm@gmail.com">John Carlson</a><br><b>Cc: </b><a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a><br><b>Subject: </b>Re: [x3d-public] Sample X3D Python API; examplespublishedforcontinuing improvement<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Our messages crossed but are quite similar... we might have the problem surrounded I hope...<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>On 4/22/2019 8:45 PM, John Carlson wrote:<o:p></o:p></p><p class=MsoNormal>> This is a more broad problem than pyjnius, and is likely a Java problem that is letting things past the interface contract. Okay, I will try to explain what the bug is:<o:p></o:p></p><p class=MsoNormal>> <o:p></o:p></p><p class=MsoNormal>> setDEF in X3DViewpointNode returns an X3DViewpointNode (interface)<o:p></o:p></p><p class=MsoNormal>> <o:p></o:p></p><p class=MsoNormal>> public X3DViewpointNode setDEF(String newValue);<o:p></o:p></p><p class=MsoNormal>[...]<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Please make sure that you have _no_ references to abstract class X3DViewpointNode anywhere in your code.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The Java source for concrete class ViewpointObject specifically overrides its abstract parent superclass with an @Override annotation. Inside X3DJSAIL the setDEF() method correctly returns type ViewpointObject.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If we remove all references to X3D*Node abstract classes everywhere and the problem still occurs, then<o:p></o:p></p><p class=MsoNormal>- perhaps not all of those definitions are removed, or<o:p></o:p></p><p class=MsoNormal>- perhaps an old file in the path is somehow visible, or<o:p></o:p></p><p class=MsoNormal>- we have isolated a bug in Pyjnius that we can ask them to fix.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Good luck sir.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>all the best, Don<o:p></o:p></p><p class=MsoNormal>-- <o:p></o:p></p><p class=MsoNormal>Don Brutzman Naval Postgraduate School, Code USW/Br brutzman@nps.edu<o:p></o:p></p><p class=MsoNormal>Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<o:p></o:p></p><p class=MsoNormal>X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>