Macro SuperWire

This macro creates a wire from selected objects (lines and arcs) even where normal wire creation methods (for example the upgrade tool) fail.
Attention, you need a recent version of FreeCAD for this to work

import FreeCAD,FreeCADGui,Part
try:
    import DraftGeomUtils as fcgeo
except:
    from draftlibs import fcgeo

sel = FreeCADGui.Selection.getSelection()
if not sel:
   FreeCAD.Console.PrintWarning("Select something first!")
else:
   elist = []
   for obj in sel:
       if hasattr(obj,"Shape"):
           elist.append(obj.Shape.Edges[0])
   wire = fcgeo.superWire(elist)
   if wire:
       Part.show(wire)
   else:
       FreeCAD.Console.PrintError("SuperWire operation failed!")