[ python-Bugs-848812 ] Inconsistent list.__add__/__addi__.

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Bugs item #848812, was opened at 2003-11-25 04:50
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Jeremy Fincher (jemfinch)
Assigned to: Nobody/Anonymous (nobody)
Summary: Inconsistent list.__add__/__addi__.

Initial Comment:
>>> L = [1,2,3] 
>>> L + (1,2,3) 
Traceback (most recent call last): 
  File "<stdin>", line 1, in ? 
TypeError: can only concatenate list (not "tuple") to list 
>>> L += (1,2,3) 
>>> L 
[1, 2, 3, 1, 2, 3] 
 
I've always been somewhat annoyed that list.__add__ 
didn't accept any iterable (just lists), but to have += accept 
any iterable but not + is just plain inconsistent. 

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