Bug report

Bug summary

Functionis_string_like returns True for numpyobject arrays

Code for reproduction

importnumpyasnpfrommatplotlib.cbookimportis_string_likeprint(is_string_like(np.array(map(str, [1,2,3]),dtype=object)))

Actual outcome

True

Expected outcome

False

The problem is that the line 707obj + '' inis_string_like does not generate an exception with such numpy array.

Matplotlib version

• Matplotlib version: 1.5.3
• OS: Ubuntu 14.04
• Python and Matplotlib Installed with Anaconda