That is why people consider them castrated - in most languages I'm aware of that have a "lambda" statement, it can be read as "create an anonymous function that executes this body of statements". In python it reads as "perform a simple transformation or calculation on or with these arguments", as that's all it's generally good for.

Python's lambda doesn't allow the use of statements (correct me if I'm wrong I haven't written Python in a few years and they may have "fixed" this).

Meanwhile Ruby only allows expressions too - the catch here is that everything in Ruby is an expression.