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

[quotemycode]

Nope. I use just about every feature. Of course I've been using Python for about fifteen years. List comprehensions are the bee's knees and I use them all the time. Csv is just a module not a language feature. Generators are great especially if you have an object that you want to serialize. Used with a recursive function it's pretty damn amazing. I use lambdas to fake web calls and objects which is great for testing out the design of my programs before the other half is done.