These people don't even read their own literature. The Catholic church's ban on alchemy is about falsely claiming something is a valuable metal in order to pay for debts. It has nothing to do with the occult -- the ban was because it's a sin to lie / cheat / steal. A saint is even on record saying that alchemical gold is ok if the end if product is real gold.

With that context, of course God doesn't give a shit if you use SQLAlchemy as long as you aren't using it to defraud people. If you were defrauding people, it wouldn't matter what tool you used.

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