from scipy import interp code example

Example 1: scipy, interpolate

>>> xnew = np.arange(0, 9, 0.1)
>>> ynew = f(xnew)   # use interpolation function returned by `interp1d`
>>> plt.plot(x, y, 'o', xnew, ynew, '-')
>>> plt.show()

Example 2: smooth interpolation python

spl.set_smoothing_factor(0.5)
plt.plot(xs, spl(xs), 'b', lw=3)
plt.show()