def length_3d(self):
        length = 0
        for track_segment in self.segments:
            d = track_segment.length_3d()
            if d:
                length += d
        return length
Check to see if test runner user was already created (perhaps by
dataset/ETHPy150Open tkrajina/gpxpy/gpxpy/gpx.py/GPXTrack.length_3d--crossover with--dataset/ETHPy150Open mazelife/django-scaffold/scaffold/tests.py/SectionTest._setup_admin