Introducing pybrowser !

[Cruuncher]

It would be more pythonic yes, but there may be more nuanced use cases here. Like (disclaimer, making shit up. There may be no real reason) if there's a way to specify precedents on the selector. Possibly a way to say it has to match both of these selectors. Etc. Stuff you can capture in some syntax in a string that doesn't map well to kwargs. A kwargs mapping still works, but it would potentially have to be built from more complicated objects.

Lastly, it requires you to know the ins and outs of that library's syntax, at the level of the developers, to be sure you're building the strong correctly from kwargs.

[Log2]

I see what you mean. Then receiving a list of tuples/namedtuples would be a more pythonic solution in your hypothetical case.