Hi,

I'm trying to add label to a histogram with multiple data. The doc says 
"label can also be a sequence of strings" but when I try:

plt.hist([listA, listB, listC], bins=25, histtype='bar', 
alpha=0.75,rwidth=0.85,label=['A','B','C'])

I got an error:
"AttributeError: 'tuple' object has no attribute 'startswith'"
(for the entire traceback see http://paste.pocoo.org/show/119820/ )

is it me or a bug?

Can I add a legend in another way?

thanks in advance!

-Yva.

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