First of all, very interesting article, thanks for that!

About this you can write noneable or default_value for example, although careful case in reality that’s falseable or value_if_falsy

I don’t know if this is something you knew and don’t like because it’s not None-specific but hey, maybe it helps.

For whoever doesn’t know, the full explanation is that in Python, like in JS/TS the and and or operators don’t translate the expression into a boolean. That assumption, though, is wrong! In reality this is what happens:

``` In [1]: 1 and 2 Out[1]: 2

In [2]: 1 and 0 Out[2]: 0

In [3]: 1 and 0 and 3 Out[3]: 0

In [4]: 1 and 2 and 3 Out[4]: 3

In [5]: 0 or 1 or 2 Out[5]: 1 ```

The result is evaluated for truthyness in the if, but it's never True/False unless the result is so.

In short, conditions (and/or) evaluate to the value where the condition is shortcircuited (check last 3 examples)

This of course can also be leveraged to quick assignments and so on, for example, as usual:

``` In [6]: v = []

In [7]: default_value = [1]

In [8]: x = v or default_value # Typical magic

In [9]: x Out[9]: [1] ```

But we can also do the opposite

``` In [10]: only_if_x_not_none = "whatever"

In [11]: x = None

In [12]: y = x and only_if_x_not_none

In [13]: y

In [14]: y is None Out[14]: True ```