Plugin doesn't work with Inkscape 1.0.1

[christtofhahn]

I've created a simple triangle, with freehand lines tool. After than I converted it to a path. I select the path and call the plugin and start convert. The following output happens:

paths2openscad.py:233: DeprecationWarning: Effect.OptionParser or optparse has been deprecated and replaced with argparser.You must change self.OptionParser.add_option to self.arg_parser.add_argument; the arguments are similar.
self.OptionParser.add_option( "--tab", #NOTE: value is not used.
paths2openscad.py:238: DeprecationWarning: Effect.OptionParser or optparse has been deprecated and replaced with argparser.You must change self.OptionParser.add_option to self.arg_parser.add_argument; the arguments are similar.
self.OptionParser.add_option('--smoothness', dest='smoothness',
paths2openscad.py:242: DeprecationWarning: Effect.OptionParser or optparse has been deprecated and replaced with argparser.You must change self.OptionParser.add_option to self.arg_parser.add_argument; the arguments are similar.
self.OptionParser.add_option('--height', dest='height',
paths2openscad.py:246: DeprecationWarning: Effect.OptionParser or optparse has been deprecated and replaced with argparser.You must change self.OptionParser.add_option to self.arg_parser.add_argument; the arguments are similar.
self.OptionParser.add_option('--fname', dest='fname',
paths2openscad.py:916: DeprecationWarning: Effect.affect is now Effect.run(). The output argument has changed.
e.affect()
paths2openscad.py:872: DeprecationWarning: Effect.selected is now a dict in the svg. Use self.svg.selected.
transform = self.recursivelyGetEnclosingTransform( self.selected[id] )
paths2openscad.py:873: DeprecationWarning: Effect.selected is now a dict in the svg. Use self.svg.selected.
self.recursivelyTraverseSvg( [self.selected[id]], transform )
paths2openscad.py:573: DeprecationWarning: simpletransform.parseTransform -> Transform(str).matrix
matNew = simpletransform.composeTransform( matCurrent, simpletransform.parseTransform( node.get( "transform" ) ) )
paths2openscad.py:573: DeprecationWarning: simpletransform.composeTransform -> Transform(M1) * Transform(M2)
matNew = simpletransform.composeTransform( matCurrent, simpletransform.parseTransform( node.get( "transform" ) ) )
paths2openscad.py:366: DeprecationWarning: simplepath.parsePath -> element.path.to_arrays()
sp = simplepath.parsePath( path )
paths2openscad.py:372: DeprecationWarning: cubicsuperpath.CubicSuperPath -> None
p = cubicsuperpath.CubicSuperPath( sp )
paths2openscad.py:378: DeprecationWarning: simpletransform.applyTransformToPath -> Path(path).transform(mat)
simpletransform.applyTransformToPath( transform, p )
paths2openscad.py:216: DeprecationWarning: inkex.bezier.maxdist -> Get maximum distance within bezier curve
if cspsubdiv.maxdist( b ) > flat:
paths2openscad.py:221: DeprecationWarning: inkex.bezier.beziersplitatt -> Split bezier at given time
one, two = bezmisc.beziersplitatt( b, 0.5 )
Unable to open the file c:\inkscape.scad