On 08/13/2014 10:55 AM, Steven D'Aprano wrote:
Ethan Furman wrote:
On 08/13/2014 09:00 AM, Steven D'Aprano wrote:
What is the rationale for str not having __radd__ method?
At a guess I would say because string only knows how to add itself to
other strings, so __add__ is sufficient.
# Python 2.7
py> "Hello" + u"World"
u'HelloWorld'
py> unicode.__radd__
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: type object 'unicode' has no attribute '__radd__'
Well, unicode is a string type, right? ;)
And for the proof:
'hello'.__add__(u'world')
u'helloworld'
u'hello'.__add__('world')
u'helloworld'
My brain hurts.
An occupational hazard of unicode, surely.
--
~Ethan~
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