In [1]: import numpy as np

In [2]: np.__version__
Out[2]: '1.9.1'

In [3]: arr = np.zeros([5, 2])

In [4]: arr[:,[0,1]] = np.arange(10).reshape([2, 5])
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-4-fe63af63442b> in <module>()
----> 1 arr[:,[0,1]] = np.arange(10).reshape([2, 5])

ValueError: shape mismatch: value array of shape (2,5) could not be broadcast to 
indexing result of shape (2,5)  # BAD

In [5]: arr[:,[0,1]] + np.arange(10).reshape([2, 5])
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-5-8c656689a6ee> in <module>()
----> 1 arr[:,[0,1]] + np.arange(10).reshape([2, 5])

ValueError: operands could not be broadcast together with shapes (5,2) (2,5)  # correct