sorry about your python. It may have had somethiong wrong with it but hard tyo say without vet testing.
can I ask what substarte you use in the enclosure? I have a feeling it might be Breeders Choice (or similar) which will suck the moisture from the enclosure making it a very dry environment with little humidity. That could cause the shedding problems.
just a theory but would be interested to know if the substrate used was breederd choice.
personally I would not consider using it in any snake enclosure. I find newspaper much better, more hygenic and disposable. I never have any shedding problems with any of my animals from hatchie to adult, and most shed in one complete shed.
I wouldn't use this "help shed" chemical concoction either.. If necessary just slightly warm water is all you need. A lot of these pet dhop reptile products in my opinion are just aimed at taking your money from you rather than being of any real benefit.