Fix gltf (#1213)

* Only run gltf example

* Remove superfluous prints

* Raise on stderr

* Fix path expansion

* Final fix for create_sites_for_python_operators.ps1

* Revert "Remove superfluous prints"

This reverts commit fb81e4a.

* Revert "Only run gltf example"

This reverts commit df37386.

Author: PProfizi

docs/source/user_guide/create_sites_for_python_operators.ps1

@@ -6,7 +6,7 @@ Write-Host "-pythonexe" $pythonexe
 Write-Host "-tempfolder" $tempfolder
 
 # Expand shortcut in path
-$tempfolder = Resolve-Path -Path $tempfolder
+$tempfolder = Resolve-Path -Path $tempfolder -Relative
 
 Write-Host "make venv"
 Start-Process $pythonexe -ArgumentList ("-m venv "+ $tempfolder+"\venv") -NoNewWindow -Wait

examples/08-python-operators/02-python_operators_with_dependencies.py

@@ -149,7 +149,7 @@
     import subprocess
 
     process = subprocess.run(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-    if process.returncode != 0 and process.stderr:
+    if process.stderr:
         raise RuntimeError(
             "Installing pygltf in a virtual environment failed with error:\n"
             + f"return code = {process.returncode}\n"