Puzzling error msg.

Dave Angel d at davea.name
Tue Dec 4 04:43:16 CET 2012

On 12/03/2012 10:28 PM, Chris Angelico wrote:
> On Tue, Dec 4, 2012 at 1:28 PM, Dave Angel <d at davea.name> wrote:
>> On 12/03/2012 03:33 PM, Chris Angelico wrote:
>>> <snip>
>>> Is it possible that the error actually came from further up (with a
>>> faulty line number) and was actually because communicate() somehow
>>> returned an empty list? That's the only place in the code quoted that
>>> I'm seeing indexing, but communicate() is supposed to return a tuple,
>>> not a list. ChrisA
>> Tuples can also be empty.  Try j = () for example, and look at its type
>> and length.
>> No idea if this is the problem, but just wanted to nitpick.
> They can, yes, but the error said *list* index out of range. That
> shouldn't happen off an empty tuple.

Quite right.  I missed that part of the context. Sorry.



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