Benjamin Kaplan wrote:
On Thu, Dec 8, 2011 at 2:09 PM, Ethan Furman <et...@stoneleaf.us> wrote:
Benjamin Kaplan wrote:
If the RHS was a tuple or a list, yes you could know immediately. But
unpacking works with any iterable, so it probably doesn't special-case
lists and tuples. Iterables don't have a size- they just keep going
until StopIteration is raised. So in EVERY SINGLE CASE, you would get
"expected n args, got n+1" even if the iterable would return 24 items
instead of 14, or would never stop returning items.
Not so. There could be fewer, in which you could see "expected 13 args, got
7."
You mean like this?
a,b,c = ['a','b']
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: need more than 2 values to unpack
This is still not as helpful as this would be:
ValueError: need 3 values, received 2
~Ethan~
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