ConnectTheDots error when using python 3.3+

[Googliola]

Unfortunately the script did not work for me (generated gear in Fusion -> exported as dxf -> converted to svg using convert.io -> inserted svg into Fusion360 -> ran your scipt -> nothing happened except that lines are not selectable afterwards :-( )

Anyway, before I could run the script, I had to change 2 occurrences of time.clock() to time.process_time()
Maybe time.perf_counter() is a better choice!?

Reference:
https://stackoverflow.com/questions/58569361/attributeerror-module-time-has-no-attribute-clock-in-python-3-8

Instead of fiddling with your python script, I decided to take another path:
Follow this guide here. Despite being a hack, it's faster than the python script in some (most?) cases too:
https://forums.autodesk.com/t5/fusion-360-design-validate/svg-importing-with-broken-connections-and-lines/m-p/6634473/highlight/true#M78013

Addendum: Also tried these solutions, but they did not work for me either (because I use colors in my svg??). Maybe they do for your project.
https://graphicdesign.stackexchange.com/questions/46294/how-to-join-end-nodes-of-different-paths-in-inkscape
https://graphicdesign.stackexchange.com/questions/76534/automatically-merge-overlapping-nodes-in-inkscape