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					Originally Posted by  curtw
					 
				 
				I recently bought a nook GlowLight Plus, and do had to upgrade Calibre to a version that "knows" this device. My existing tools plug-in (version 6.0.7) still works fine, but if I try to reconfigure it, I get an error, "AttributeError: 'module' object has no attribute 'ConfigWidget'" 
 
Should I just leave it alone, and continue to use my old plug-in? If I update to the latest, will I have to re-enter all of the appropriate keys? 
			
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 You can use the old plugin. I have not updated my tools for years, because there's been no need. They work fine. Update when you run into problems.