Newlines

Newlines are mostly not significant, and can be put wherever you can put whitespace. For example:

>>>> const
.... x
.... =
.... 3

means the same thing as:

>>>> const x = 3

However, if a newline can be understood as the end of an expression or statement, it will be. For example:

>>>> const
.... x
.... =
.... 1
>>>> +
.... 3
3: int

Means the same as:

>>>> const x = 1
>>>> + 3
3: int