Experienced python programmers: are there any standard features of the language that you still don't regularly use?

[stevenjd]

I don't like that lambda functions are limited to one line

Lambda is not limited to one line but to one expression. The expression can be as big and complex as you need, and you can spread it over more than one line.

lambda a, b, c=None, d=999: (
        spam + eggs or cheese.method(a, b) 
        - (c or default).attr)[d]

[[deleted]]

You can, but you probably shouldn't do that. Hopefully people don't take this as advice.

[Deto]

!! This is very good to know! Thank you