[frogcoder]

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).