Translations:Release notes/1.1/156/en

• Breaking change: Python 2 is no longer supported, extensions require at least Python 3.6 (Bug extensions#351)
• Breaking change: Element.description() is now Element.desc. The new form now includes Element.desc = "some value" for setting the attribute, and Element.title, which works the same way as desc (only for the title/tooltip) and didn't exist before.
• Element selections API has been improved, the API in 1.0 of using self.svg.selected is deprecated in favour of the new self.svg.selection interface. The previous API will continue to work for the time being but should be updated to the new API. Selection is now a type of ElementList which provides filtering, ordering and other generalised functionality. If you need an element list, for example to make a bounding box, this is the way to do it.
• New:
  • Element.unit, Element.unittouu(), Element.uutounit() and Element.add_unit()
  • Element.is_sensitive() and Element.set_sensitive()
  • ExtensionClass.extra_nss = {} can be set to add namespaces, e.g. in jessyInk
  • Extension.get_resource(filename) gets files from the extension's own code repository (e.g. an image to include in the dialog, an SVG template, a data file …)
  • Extension.document_path() and Extension.absolute_href() can get a filename or location relative to the document's location (if it's saved)
  • Multiple functions have been added that make it easier to handle transformations in extensions, so if you've been relying on doing those manually in your extension, you may like to check back to see if inkex supports them now (cross product, easier chaining of transforms, polar coordinates functions,