On Thu, Sep 17, 2020 at 3:44 PM Alex Hall <alex.mojaki@gmail.com> wrote:

On Thu, Sep 17, 2020 at 9:27 PM Ricky Teachey <ricky@teachey.org> wrote:

A difficulty I have with the idea as presented is this.

If I can say this:

"{x:d} {y:d} {z:d}" = "1 2 3"

...thus assigning 1, 2, 3 to x, y, z respectively, I might want to also do the same thing this way:

q = "{x:d} {y:d} {z:d}"

q = "1 2 3"

The intent being: save the f-string as a variable, and then use it to assign later. But that can obviously never work because q would just become the string "1 2 3" .

The same problem exists for assignments to tuples, subscripts, attributes, even plain variables. I've often wanted to put an assignment target in a variable.

Feels to me akin to what Einstein called spooky action at a distance. ;)

# module A

x = f"{a:d}"

# module B

x.parse("1")

assert a == 1

This seems like a joke I would want to play on someone*, not a useful feature.

* well, if i were a bad person... ;)