[x3d-public] Python, the emperor has no clothes!

John Carlson yottzumm at gmail.com
Mon Apr 20 11:04:07 PDT 2020 

Okay, I got a little farther by adding a dependency to the environment.yml
file

Please make this note on the x3d.py page at web3d.org if someone is trying
to use mybinder.org

On Mon, Apr 20, 2020 at 12:30 PM John Carlson <yottzumm at gmail.com> wrote:

> Trying to get mybinder working with x3d.py:
>
>
> https://mybinder.org/v2/gh/coderextreme/conda/master?filepath=BackgroundCollection.ipynb
>
>
> It works locally on my Jupyter notebook. There's a problem with trying to
> iterate on a NoneType. I imagine this is an x3d.py problem, similar to
> treating an Appearance like a iterable.  Code works from command line, and
> locally!
>
> You can copy my repo and try to get it to work.  Thanks!
>
> https://github.com/coderextreme/conda
>
> or just rename BackgroundCollection.py to .ipynb.
>
> John
>
> On Mon, Apr 20, 2020 at 10:57 AM John Carlson <yottzumm at gmail.com> wrote:
>
>> testing toXML in python.   BackgroundCollection.py works.
>>
>> These don't:
>> $ python HelloWorld.py
>> x3d.py package loaded, have fun with X3D Graphics!
>> Traceback (most recent call last):
>>   File "HelloWorld.py", line 77, in <module>
>>     print (     newModel.toXML())
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 6878, in toXML
>>     result += str(self.Scene.toXML(indentLevel=indentLevel+1))
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 6679, in toXML
>>     result += each.toXML(indentLevel=indentLevel+1)
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 19183, in toXML
>>     result += each.toXML(indentLevel=indentLevel+1)
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 40543, in toXML
>>     result += each.toXML(indentLevel=indentLevel+1)
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 35796, in toXML
>>     for each in self.appearance:
>> TypeError: 'Appearance' object is not iterable
>>
>> coderextreme at DESKTOP-DOPK2VD MINGW64 /c/x3d-code/
>> www.web3d.org/x3d/stylesheets/python/examples
>> $ python HelloWorldPrefixed.py
>> x3d.py package loaded, have fun with X3D Graphics!
>> Traceback (most recent call last):
>>   File "HelloWorldPrefixed.py", line 77, in <module>
>>     print (     newModel.toXML())
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 6878, in toXML
>>     result += str(self.Scene.toXML(indentLevel=indentLevel+1))
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 6679, in toXML
>>     result += each.toXML(indentLevel=indentLevel+1)
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 19183, in toXML
>>     result += each.toXML(indentLevel=indentLevel+1)
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 40543, in toXML
>>     result += each.toXML(indentLevel=indentLevel+1)
>>   File "C:\x3d-code\www.web3d.org\x3d\stylesheets\python\examples\x3d.py",
>> line 35796, in toXML
>>     for each in self.appearance:
>> TypeError: 'Appearance' object is not iterable
>>
>> -----------------------
>>
>> Appearance is an SFNode, so it's not a iterable.
>>
>>
>> On Mon, Apr 20, 2020 at 10:27 AM John Carlson <yottzumm at gmail.com> wrote:
>>
>>> You have both a x3d.py and x3d folder.  I don't think that's allowed, or
>>> you need to put more symbols in __init__.py, perhaps?
>>>
>>> On Mon, Apr 20, 2020 at 10:23 AM John Carlson <yottzumm at gmail.com>
>>> wrote:
>>>
>>>> On the x3d.py page @ web3d:
>>>>
>>>> *Workaround*: if needed for development, simply download x3d.py
>>>> <https://www.web3d.org/x3d/stylesheets/python/x3d.py> package source
>>>> and place it in same directory as your python program.
>>>>
>>>> That works too!
>>>>
>>>> On Mon, Apr 20, 2020 at 10:21 AM John Carlson <yottzumm at gmail.com>
>>>> wrote:
>>>>
>>>>> Okay!
>>>>> from x3d import *
>>>>> does not work
>>>>>
>>>>> import x3d
>>>>> works.
>>>>>
>>>>> puzzling.
>>>>>
>>>>> John
>>>>>
>>>>> On Mon, Apr 20, 2020 at 10:14 AM John Carlson <yottzumm at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> I give up. I can't get a simple import to work!  I have python 3.8.2
>>>>>> (latest).
>>>>>>
>>>>>> Hmm.
>>>>>>
>>>>>> On Mon, Apr 20, 2020 at 9:32 AM John Carlson <yottzumm at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> coderextreme at DESKTOP-DOPK2VD MINGW64 /c/x3d-code/
>>>>>>> www.web3d.org/x3d/stylesheets/python/examples
>>>>>>> $ ls
>>>>>>> BackgroundCollection.py   HelloWorld.py   HelloWorldPrefixed.py
>>>>>>> README.md
>>>>>>> BackgroundCollection.x3d  HelloWorld.x3d  PythonX3dSmokeTests.py
>>>>>>>
>>>>>>> coderextreme at DESKTOP-DOPK2VD MINGW64 /c/x3d-code/
>>>>>>> www.web3d.org/x3d/stylesheets/python/examples
>>>>>>> $ python HelloWorld.py
>>>>>>> Traceback (most recent call last):
>>>>>>>   File "HelloWorld.py", line 21, in <module>
>>>>>>>     from x3d import *
>>>>>>> AttributeError: module 'x3d' has no attribute 'SFBool'
>>>>>>>
>>>>>>> coderextreme at DESKTOP-DOPK2VD MINGW64 /c/x3d-code/
>>>>>>> www.web3d.org/x3d/stylesheets/python/examples
>>>>>>> $ python BackgroundCollection.py
>>>>>>> Traceback (most recent call last):
>>>>>>>   File "BackgroundCollection.py", line 21, in <module>
>>>>>>>     from x3d import *
>>>>>>> AttributeError: module 'x3d' has no attribute 'SFBool'
>>>>>>>
>>>>>>> coderextreme at DESKTOP-DOPK2VD MINGW64 /c/x3d-code/
>>>>>>> www.web3d.org/x3d/stylesheets/python/examples
>>>>>>> $ python HelloWorldPrefixed.py
>>>>>>> Traceback (most recent call last):
>>>>>>>   File "HelloWorldPrefixed.py", line 26, in <module>
>>>>>>>     newModel=x3d.X3D(profile='Immersive',version='3.3',
>>>>>>> AttributeError: module 'x3d' has no attribute 'X3D'
>>>>>>>
>>>>>>> coderextreme at DESKTOP-DOPK2VD MINGW64 /c/x3d-code/
>>>>>>> www.web3d.org/x3d/stylesheets/python/examples
>>>>>>> $ python PythonX3dSmokeTests.py
>>>>>>> ===================
>>>>>>> Importing local development copy of X3D package:
>>>>>>>   from x3d import *
>>>>>>> Traceback (most recent call last):
>>>>>>>   File "PythonX3dSmokeTests.py", line 23, in <module>
>>>>>>>     from x3d import *
>>>>>>> AttributeError: module 'x3d' has no attribute 'SFBool'
>>>>>>>
>>>>>>> Umm.  It's a race to see who gets toXML first!
>>>>>>>
>>>>>>> John
>>>>>>>
>>>>>>
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