Take a look at flynt, a tool that can convert older string formatting code to the newer fstring style. I've found it very helpful!

https://github.com/ikamensh/flynt

Be aware that the only time this won't work is if you need to re-render the f-string with different context. For example you can do this:

    s = "this is {}"
    print(s.format("possible"))

but you cannot do that with f-strings because they are resolved on definition, so you could do something like this:

    for message in messages:
        print(f"The message is {message}")

But not this:

    s = f"The message is {message}"
    for message in messages:
        print(s)

This is the same drawback of JavaScript's Template Literals [0].

EDIT: Fix syntax in examples.

[0] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...

f-strings are truly amazing. They're very painless. The only gotcha I've run into is accessing a dict from inside one. You need to watch out for your quotations :).

Have you seen this? :)

    x, y = 1, 2
    print(f'{x=}, {y=}')