from pymel.core import *
uv_sets = []
src_verts = filterExpand(sm=31)
for i in range(len(src_verts)):
   uv_sets.append(polyListComponentConversion(src_verts[i], tuv=True))

uvvalue_sets = []
for uv_set in uv_sets:
   uvvalue_set = []
   for uv in uv_set:
       uvvalue_set.append(polyEditUV(uv, q=True))
   uvvalue_sets.append(uvvalue_set)

for i, uv_set in enumerate(uv_sets):
   for e, uv in enumerate(uv_set):
       polyEditUV(uv, uValue=uvvalue_sets[i][0][0], vValue=uvvalue_sets[i][0][1], relative=False)
polyMapSew(src_verts)