Python (and probably Perl too) work fine for permanent formal use as long as they are engineered as such. I have seen clear, well structured permanent code base

Python (and probably Perl too) work fine for permanent formal use as long as they are engineered as such. I have seen clear, well structured permanent code bases in python. The problem is just that people like coding one off prototypes in python, and those end up in prod; it's just as bad as when Java prototypes end up in prod, but who actually wants to write prototypes in Java, if given the choice?