I want to delete the line in python.

a[a.any(axis=1),:]

Wouldn't it be all right if

If you want to filter arrays that do not contain or contain zeroes, but are not just zeroes, you can use the array does not contain zeroes.

import numpy as np
a=np.array([0,0,0],[1,1,1],[2,2,2],[0,0,0],[3,3,3],[0,1,2,3]])
a=filter(lambdax:not 0 in x or len(set(x))>1,a)

Output Results

[[1,1,1], [2,2,2], [3,3,3], [0,1,2,3]]