Hi,
I got quite used to a sequence providing simple data persistence :
1) Store my data to a file:
writeFile fileName (show someData)

2) Some time later read this data back:
line <- readFile fileName
let someData = read line :: SomeDataType

Having this done hundreds of times I now got stuck with step 2) trying to read moderately complex structure back. I get read exception in run-time:
fromList *** Exception: Prelude.read: no parse

I have checked and rechecked my types, data files, etc. - and still no idea.

So my question:
Is there any way to trace Prelude.read exceptions to see exactly on what data element read fails in run-time?

Thanks!