py-validate

I never had the use case for arbitrary nested input, but I did build a python library that allowed you to specify the HTML input type and the python type to coerce it to + regex validation so that our giant SQL queries would fail at the beginning and not half way thru I dabbled in generating the HTML forms for calling the scripts, but what I was really excited to do was design a chatbot that would use the type declarations to ask for the scripts' requirements conversationally ("next I need a number for...") (alas, the chatscript dialog files I wrote are not open source, I would love to revisit if anyone wants to take another stab at NLP->SQL) https://github.com/jazzyjackson/py-validate

Yes! List/Dictionary/Generator comprehension is one big plus for Python, it probably came from the functional world. I use it whenever I can. > But even the lambda keyword isn't so bad, you can create a dictionary of expressions to call by name, a lot more compact them declaring them the usual way imo: https://github.com/jazzyjackson/py-validate/blob/master/pyva... lambda keyword is better than nothing, it definitely can be improved. Just imaging using javascript syntax in your example. > To your point, I only recently learned there's a Map function in Python, while in JS I'm .map(x=>y).filter(x=>y).reduce(x=>y)ing left and right. I think with the introduction of list comprehension Guido saw map function was no longer needed, that was why he wanted it removed. I don't deny it, but using map and filter sometimes are just easier to read

Learn You a Haskell for Great Good taught me list comprehension, and I was surprised to see such a pithy shorthand available in Python (+ dict comprehension). That's a very functional way to transform objects from one shape to another with an in-line expression, no lambda keyword there. But even the lambda keyword isn't so bad, you can create a dictionary of expressions to call by name, a lot more compact them declaring them the usual way imo: https://github.com/jazzyjackson/py-validate/blob/master/pyva... To your point, I only recently learned there's a Map function in Python, while in JS I'm .map(x=>y).filter(x=>y).reduce(x=>y)ing left and right.