Python needs better error reporting

[holger krekel]

Opus wrote:

> At the most, I might suggest that there be an option to run just the parser, 
> with more verbose output.  Maybe even a different parser would be in order.  
> Idea for anyone????

i'd suggest a heuristic approach.  Compute statistics for which token
usually comes after a group of others. Just look at AST-structures not
values.  This way you can suggest a hint to the user what he might have
done wrong.  I think it's not feasible and too verbose to tell the user
what is actually correct.  A simple "Maybe you forgot ..." would cover
90% of the cases, i guess.

    holger