test_defchararray.py 文件源码

def test_from_string_array(self):
        A = np.array(asbytes_nested([['abc', 'foo'],
                                     ['long   ', '0123456789']]))
        assert_equal(A.dtype.type, np.string_)
        B = np.char.array(A)
        assert_array_equal(B, A)
        assert_equal(B.dtype, A.dtype)
        assert_equal(B.shape, A.shape)
        B[0, 0] = 'changed'
        assert_(B[0, 0] != A[0, 0])
        C = np.char.asarray(A)
        assert_array_equal(C, A)
        assert_equal(C.dtype, A.dtype)
        C[0, 0] = 'changed again'
        assert_(C[0, 0] != B[0, 0])
        assert_(C[0, 0] == A[0, 0])