Speed up this code?

[John Machin]

On 27/05/2006 6:57 AM, bearophileHUGS at lycos.com wrote:
> I have tried this comparison, with a version I've modified a bit, I
> have encoutered a problem in sieve_all, for example with n=10000, I
> don't know why:

It might have been better use of bandwidth to give details of the 
problem instead of all that extraneous source code.

Did you get this: """RuntimeError: maximum recursion depth exceeded"""?

You don't know why?