[meowface]

First, keep in mind that as others have said, there is no "magic" involved here.

`list(seq)` will return a list of elements. `list(dct)` will return a list of keys. A for-loop will always loop over the abstract "list representation" of the object (the list result itself is just an accumulation of values from a for-loop).

So your first suggestion would make no sense whatsoever. As for the second...one could maybe argue for that. Many people end up using `dct.keys()` anyway when they want the keys, and `.items()` is so common that it could maybe be made the default. Ruby actually does this by default. However, it would break a ton of current code where people expect to be looping over the keys.