Trying to follow flet.app

[kkinder]

Hi, I'm trying to follow flet.app usage. When I see examples you give for production environments, I see that you do something like this:

ft.app(port=os.environ['PORT'], target=main)

I find this confusing however, because when I run it locally, it starts a native window to interact with. If I run this inside a Docker environment, it just automatically knows not to? Does Flet know whether it's in dev mode or not without any parameters? How can I be sure it's in a production setting if I'm not passing anything?

Cheers!

-Ken

[FeodorFitsner]

That port=os.environ['PORT'] is only needed because PORT is a hardcoded variable passed by a hosting environment. Fletd (server) listening port can be set with FLET_SERVER_PORT environment variable. Let me know if I got your question right.

[kkinder]

Yeah, that makes sense, but I guess I'm more asking whether Flet knows whether it's in a production or development environment. When I run it interactively, it shows up with an app window. If I pass view=flet.WEB_BROWSER, it opens a browser. Both of those seem like development environment profiles (opening a window, or a browser).

Does Flet just know when it's in a production environment and not do those things?

Thanks!
-Ken