Martin Panter added the comment:
Here is a new patch that also updates the documentation for list etc displays
as well as function calls. Let me know what you think.
The 3.5 What’s New notes were written separately; Neil’s patch was never
applied. But I have rescued his update for functools.partial() in my new patch.
While experimenting with the current behaviour, I found some surprising
inconsistencies. The following syntaxes are allowed:
>>> x, *y
>>> a = x, *y
>>> f"{x, *y}" # New in 3.6
>>> async def f(): await x, *y
But the following all produce “SyntaxError: invalid syntax”:
>>> a += x, *y
>>> eval("x, *y")
>>> def f(): return x, *y
>>> def f(): yield x, *y
>>> for i in x, *y: ...
Also, the expressions allowed for unpacking in general are more limited than in
function calls:
>>> f(x, *y == z) # Allowed
>>> (x, *y == z)
SyntaxError: invalid syntax
----------
Added file: http://bugs.python.org/file43339/unpacking-doc.patch
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