Python numpy排序1D数组

Question

I am trying to sort a numpy array using this very simple code:

print np.array([2,0,8,4,1]).sort()

However, I am getting the result:

None

Can someone tell me what's going on here?

Answer 1

The array probably gets sorted in-place, like Python's list.sort() does so you don't get fooled into thinking the original array is still the same.

arr = np.array([2,0,8,4,1])
arr.sort()
print arr