In [3]:

    

import matplotlib.pyplot as plt
import numpy as np
#import xxhash
L = np.array([1,2,3,4,5,6,7,8,9,0,1,2])


    

In [13]:

    

def getAllWindows(L,L2=None,lenght=3):
    if L2 is None:
        L2 = L[:-1]
    if L.size<lenght:
        if L2.size<lenght:
            return []
        return getAllWindows(L2,L2[:-1],lenght)
    if L.size>lenght:
      return getAllWindows(L[1:],L2,lenght)
    return [L]+getAllWindows(L[1:],L2,lenght)


    

In [14]:

    

windows = getAllWindows(L,lenght=3)
windows


    

    
Out[14]:





[array([0, 1, 2]),
 array([9, 0, 1]),
 array([8, 9, 0]),
 array([7, 8, 9]),
 array([6, 7, 8]),
 array([5, 6, 7]),
 array([4, 5, 6]),
 array([3, 4, 5]),
 array([2, 3, 4]),
 array([1, 2, 3])]

In [ ]: