Element-wise string concatenation in numpy

Question

Is this a bug?

import numpy as np
a1=np.array([\'a\',\'b\'])
a2=np.array([\'E\',\'F\'])

In [20]: add(a1,a2)
Out[20]: NotImplemented

I am t

Answer 1

This can (and should) be done in pure Python, as numpy also uses the Python string manipulation functions internally:

>>> a1 = ['a','b']
>>> a2 = ['E','F']
>>> map(''.join, zip(a1, a2))
['aE', 'bF']