import gpxpy

coordinates = [
    (45.48022428207604,9.195426779729253),
    (45.47955920386783,9.211414017521326),
    (45.47004427949249,9.203266840037728),
    (45.475357889920666,9.191542629685118),
    (45.47459610057904,9.208902213194566),
    (45.478548651650364,9.214803404483442),
    (45.46896260077224,9.210735083849189),
    (45.476397626274775,9.194716709512006),
    (45.475918164099824,9.200196924291388),
    (45.479553171431604,9.21471213487326),
    (45.47701013861511,9.208935252810576),
    (45.48182315628131,9.197640483441692),
    (45.47577401244318,9.212112575183651)
]

gpx = gpxpy.gpx.GPX()

for coord in coordinates:
    lat, lon = coord
    w = gpxpy.gpx.GPXWaypoint()
    w.latitude = lat
    w.longitude = lon
    w.name = "Testing"
    gpx.waypoints.append(w)

print(gpx.to_xml())