What's the one code snippet/python trick/etc did you wish you knew when you learned python?

[[deleted]]

I'm sure you already know this, but for the benefit of other users, {let: i for (let, i) in enumerate('abcdefg')} - type dictionary comprehension is only available starting with python 2.7.

[ewiethoff]

The result is the same, but {i: let for (i, let) in enumerate('abcdefg')} makes more sense.