Module disappearing after restarting

Support
1

Howdy~

I have run into an issue where when I add these lines of code:

loadedVolumeNode = slicer.util.loadVolume(‘Z:/Something/LumbarCT’, {}, returnNode=True)
vol=slicer.util.getNode(‘Lumbar*’)
vol.GetImageData().GetDimensions()

then my module stops updating and then when I restart it gives me the following error:
Traceback (most recent call last):
File “Z:/Slicer 4.10.2/bin/…/lib/Slicer-4.10/qt-scripted-modules/ExtensionWizard.py”, line 273, in selectExtension
xd = SlicerWizard.ExtensionDescription(sourcedir=path)
File “Z:\Slicer 4.10.2\bin\Python\SlicerWizard\ExtensionDescription.py”, line 136, in init
self._setProjectAttribute(“homepage”, p, required=True)
File “Z:\Slicer 4.10.2\bin\Python\SlicerWizard\ExtensionDescription.py”, line 183, in setProjectAttribute
v = project.getValue("EXTENSION" + name.upper(), default, substitute)
File “Z:\Slicer 4.10.2\bin\Python\SlicerWizard\ExtensionProject.py”, line 280, in getValue
raise KeyError(“script does not set %r” % name)
KeyError: “script does not set ‘EXTENSION_HOMEPAGE’”

My ultimate goal is to import a DICOM from a file on my PC, segment it automatically, then export it onto a file on my PC. This is the importing part of this ultimate goal.

Thank you advance! Always a pleasure to learn more~

2

You only need to use the ExtensionWizard once, to create your module. Once your module is created, you can update it by clicking on “Reload” button in Reload&Test section of the module GUI.

If your module does not show up in the module list then add its path to additional module paths in menu: Edit / Application settings / Modules.

3

I have been doing that as well. When I comment out the lines of code I outlined above for importing, the module reappears.

When I uncomment it, then I get the following error and module disappears on restart
Traceback (most recent call last):
File “Z:\Slicer 4.10.2\bin\Python\slicer\ScriptedLoadableModule.py”, line 195, in onReload
slicer.util.reloadScriptedModule(self.moduleName)
File “Z:\Slicer 4.10.2\bin\Python\slicer\util.py”, line 623, in reloadScriptedModule
moduleName, fp, filePath, (’.py’, ‘r’, imp.PY_SOURCE))
File “Z:/LoadSegMod/DicomTesting/SegmentDicom/SegmentDicom.py”, line 158
vol = slicer.util.getNode(‘Lumbar*’)
^
IndentationError: unindent does not match any outer indentation level

4

Python failed to parse your file due to an indentation error. You need to pay very close attention to correct indentation when developing in Python - you must not mix spaces and tabs for indentation, and all lines in the same block must have the same number of leading spaces or tabs.

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