py-validate VS pampy

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...")

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. Say [foo(v) for v in a] vs map(foo, a).

Here is pattern matching as a library that is not built using statements,

https://github.com/santinic/pampy

Clearly it's possible. It's also more ergonomic than PEP 622.

What about some Python's alternative then? https://github.com/santinic/pampy https://pythonawesome.com/pampy-the-pattern-matching-for-python-you-always-dreamed-of/