Strategies when hunting for dictionary corruption

[Erik]

On 06/02/17 12:56, Skip Montanaro wrote:
> Is there a better way to approach this problem? (I also
> have valgrind at my disposal, but am not very skilled in its use.)

valgrind is what I was going to suggest. You have to compile Python with 
extra flags to get it to integrate well with valgrind though, because of 
its custom allocators (if you're just trying to run it now and are 
confused by the results, that might be why).

valgrind (or rather, valgrind's "memcheck" module) has command line 
flags for giving deeper information than the default, but at the expense 
of tracking more and slowing things down.

E.