[x3d-public] Generating python issue. Windows 10

[John Carlson]

Here's a patch that appears to work on Windows. Other systems are welcome
to try something else!
$ git diff .
diff --git a/src/main/python/x3djsonld.py b/src/main/python/x3djsonld.py
index 184f21fd7..4dd770f68 100644
--- a/src/main/python/x3djsonld.py
+++ b/src/main/python/x3djsonld.py
@@ -256,7 +256,7 @@ def parseObject(parent, data,indent):
     return out


-with open('HelloWorldProgramOutput.json' if len(sys.argv) == 1 else
sys.argv[1], encoding="utf-8") as json_file:
+with open('HelloWorldProgramOutput.json' if len(sys.argv) == 1 else
sys.argv[1], encoding="cp1252") as json_file:
     data = json.load(json_file)
     print("from x3d import *")
     # print("from x3d import SFBool")


Advice on what encoding to use welcome for cross-platform???  latin1?   The
greek letter for pi actually appears when I cat the json file.

On Sat, Jul 2, 2022 at 12:32 AM John Carlson <yottzumm at gmail.com> wrote:

> Python problem. Output to terminal is not the same as output to pipe.
>
> Git Bash on Windows 10.  Also under PowerShell. Under Windows Terminal.
> Python 3.10.2.
>
> I believe if I remove the pi Unicode character it works. JSON attached.
>
> Code is here at this URL:
>
>
> https://github.com/coderextreme/X3DJSONLD/blob/master/src/main/python/x3djsonld.py
>
> This is an encoding issue AFAIK.  Probably we've handled it before.
>
> See below:
> $ find /c/x3d-code/
> www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter02GeometryPrimitives/
> -name TextSpecialCharacters.json| xargs python3 x3djsonld.py
> ==================================================
> '''
> x3d.py package 4.0.64.1 loaded, have fun with X3D Graphics!
> '''
> from x3d import *
> print(
> X3D(profile="Immersive", version="3.3",
> head=head(),
> Scene=Scene(children=[
> WorldInfo(title="TextSpecialCharacters.x3d"),
> Background(skyColor=[(1,1,1)]),
> Viewpoint(description="Default View", position=((0,0,15))),
> Shape(
> geometry=
> Text(DEF="DefaultText", string=["Character entity substitutions:","empty
> string \"\" skips a line:","","apostrophe ' is '","ampersand & is
> &","quote mark \" is "","backslash \\ is X3D escape character","double
> backslash \\\\ is X3D backslash \\ character","Pi Π is Π XML character
> entity"],
> fontStyle=
> FontStyle(DEF="CenteredFontStyle", justify=["MIDDLE","MIDDLE"])),
> appearance=
> Appearance(
> material=
> Material(DEF="DefaultMaterial", diffuseColor=((0.2,0.2,0.2)))))]))
> .XML())
> =====================================================
> $ find /c/x3d-code/
> www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter02GeometryPrimitives/
> -name TextSpecialCharacters.json| xargs python3 x3djsonld.py | cat
> =====================================================
> '''
> x3d.py package 4.0.64.1 loaded, have fun with X3D Graphics!
> Traceback (most recent call last):
>   File "x3djsonld.py", line 265, in <module>
> '''
> from x3d import *
> print(    print(parseObject("X3D", data, 0))
>   File "C:\Program
> Files\WindowsApps\PythonSoftwareFoundation.Python.3.7_3.7.2544.0_x64__qbz5n2kfra8p0\lib\encodings\cp1252.py",
> line 19, in encode
>     return codecs.charmap_encode(input,self.errors,encoding_table)[0]
> UnicodeEncodeError: 'charmap' codec can't encode character '\u03a0' in
> position 513: character maps to <undefined>
>
>
> Tried under PowerShell for Microsoft people. I don't see why there's so
> much repetition in errors.
> =====================================================
> PS C:\Users\john\X3DJSONLD\src\main\python> python .\x3djsonld.py
> ..\data\TextSpecialCharacters.json| Get-Content
> ======================================================
> Traceback (most recent call last):
>   File "C:\Users\john\X3DJSONLD\src\main\python\x3djsonld.py", line 265,
> in <module>
>     print(parseObject("X3D", data, 0))
>   File "C:\Python310\lib\encodings\cp1252.py", line 19, in encode
>     return codecs.charmap_encode(input,self.errors,encoding_table)[0]
> UnicodeEncodeError: 'charmap' codec can't encode character '\u03a0' in
> position 470: character maps to <undefined>
> Get-Content : The input object cannot be bound to any parameters for the
> command either because the
> command does not take pipeline input or the input and its properties do
> not match any of the
> parameters that take pipeline input.
> At line:1 char:59
> + python .\x3djsonld.py ..\data\TextSpecialCharacters.json| Get-Content
> +                                                           ~~~~~~~~~~~
>     + CategoryInfo          : InvalidArgument: (''':PSObject)
> [Get-Content], ParameterBindingExcepti
>    on
>     + FullyQualifiedErrorId :
> InputObjectNotBound,Microsoft.PowerShell.Commands.GetContentCommand
>
> Get-Content : The input object cannot be bound to any parameters for the
> command either because the
> command does not take pipeline input or the input and its properties do
> not match any of the
> parameters that take pipeline input.
> At line:1 char:59
> + python .\x3djsonld.py ..\data\TextSpecialCharacters.json| Get-Content
> +                                                           ~~~~~~~~~~~
>     + CategoryInfo          : InvalidArgument: (x3d.py package ...h X3D
> Graphics!:PSObject) [Get-Con
>    tent], ParameterBindingException
>     + FullyQualifiedErrorId :
> InputObjectNotBound,Microsoft.PowerShell.Commands.GetContentCommand
>
> Get-Content : The input object cannot be bound to any parameters for the
> command either because the
> command does not take pipeline input or the input and its properties do
> not match any of the
> parameters that take pipeline input.
> At line:1 char:59
> + python .\x3djsonld.py ..\data\TextSpecialCharacters.json| Get-Content
> +                                                           ~~~~~~~~~~~
>     + CategoryInfo          : InvalidArgument: (''':PSObject)
> [Get-Content], ParameterBindingExcepti
>    on
>     + FullyQualifiedErrorId :
> InputObjectNotBound,Microsoft.PowerShell.Commands.GetContentCommand
>
> Get-Content : The input object cannot be bound to any parameters for the
> command either because the
> command does not take pipeline input or the input and its properties do
> not match any of the
> parameters that take pipeline input.
> At line:1 char:59
> + python .\x3djsonld.py ..\data\TextSpecialCharacters.json| Get-Content
> +                                                           ~~~~~~~~~~~
>     + CategoryInfo          : InvalidArgument: (from x3d import
> *:PSObject) [Get-Content], Parameter
>    BindingException
>     + FullyQualifiedErrorId :
> InputObjectNotBound,Microsoft.PowerShell.Commands.GetContentCommand
>
> Get-Content : The input object cannot be bound to any parameters for the
> command either because the
> command does not take pipeline input or the input and its properties do
> not match any of the
> parameters that take pipeline input.
> At line:1 char:59
> + python .\x3djsonld.py ..\data\TextSpecialCharacters.json| Get-Content
> +                                                           ~~~~~~~~~~~
>     + CategoryInfo          : InvalidArgument: (print(:PSObject)
> [Get-Content], ParameterBindingExce
>    ption
>     + FullyQualifiedErrorId :
> InputObjectNotBound,Microsoft.PowerShell.Commands.GetContentCommand
>
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