import re    
from decimal import *    
import numpy    
from scipy.signal import cspline1d, cspline1d_eval    
import scipy.interpolate    
import scipy    
import math    
import numpy    
from scipy import interpolate

Y1 =[0.48960000000000004, 0.52736099999999997, 0.56413900000000006, 0.60200199999999993, 0.64071400000000001, 0.67668399999999995, 0.71315899999999999, 0.75050499999999998, 0.61494199999999999, 0.66246900000000009]

X1 =[0.024, 0.026000000000000002, 0.028000000000000004, 0.029999999999999999, 0.032000000000000001, 0.034000000000000002, 0.035999999999999997, 0.038000000000000006, 0.029999999999999999, 0.032500000000000001]

rep = scipy.interpolate.splrep(X1,Y1)

W powyższym kodzie otrzymuję i popełniam błąd

Traceback (most recent call last): 
File "/home/vibhor/Desktop/timing_tool/timing/interpolation_cap.py", line 64, in <module>

rep = scipy.interpolate.splrep(X1,Y1)
File "/usr/lib/python2.6/site-packages/scipy/interpolate/fitpack.py", line 418, in splrep

raise _iermess[ier][1],_iermess[ier][0]
ValueError:     Error on input data

Nie wiem, co się dzieje