Screwing Up looping in Generator

Tue Jan 3 16:57:52 EST 2017

On 1/3/2017 3:53 PM, Deborah Swanson wrote:
>> I think you're expecting
>>>> 	for file in rootobs
>>>> to get the next yield for you from rootobs, but unless
>> someone corrects me, I don't think you can expect a 'for'
>> statement to do that. You need to have a 'next' statement
>> inside your for loop to get the next yield from the generator.

As I read this, out of context, it is wrong. It it very unusual to call 
next on the current iterator (here next(rootobs)), inside a for loop.
> You probably want something like :
>> for f in rootobs:
> file = next

This is definitely wrong, as it makes 'find' an alias for the next() 
function.
> base = os.path.basename(file.name)

and file.name will be an AttributeError.
---
If one wants to iterate through files and lines within files, which I 
believe I saw in this thread, one should have a for loop within a for loop.
-- 
Terry Jan Reedy