In [1]:

    

import numpy as np
import time


    

In [2]:

    

count = 1573457319


    

In [3]:

    

start = time.time()
indexes = np.arange(1,count+1,dtype = np.int32)
ri = np.random.choice(indexes,size = count, replace=False)
end = time.time()
print('generation took %.1f minutes' %((end-start)/60))


    

    




generation took 7.9 minutes

In [4]:

    

max(ri)


    

    
Out[4]:





1573457319

In [12]:

    

np.save('random_index.npy',ri)


    

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