maxim-saplin / flutter_python_starter Goto Github PK

So, this is not an issue, but rather question. Does python have access to connected USB devices? I'm mainly interested in desktop platforms. I have a python lib which does some USB device read/write ops and kinda wanted to bring it into standalone flutter desktop app.

this is a great project!! i am running something similar on windows with flutter managing a python process and talks to it via websockets and http, and i want to try this out.

can i ask a silly question - are we expected to run the .sh file on WSL in windows?

EDIT: nevermind I see we can install git bash windows.

1. Proper management of /assets

• Handle situation when there're already assets defined in pubspec.yaml
• When building for a specific platform make sure to remove assets from other platforms to save room

2. Investigate "Do you want the application “app.app” to accept incoming network connections?" request upon first launch, shouldn't be any - fixed, didn't use loopback address when requesting free port from OS
3. Fix multi instance launch (currently next instance kills old server)
4. Slow Python startup when launching Flutter app

• PyInstaller 8-9s, Nuitka 7-8s (M1 Pro)
• Consider use -onedir arg with PyInstaller and zip/unzip it via Flutter

5. Awaiting error code on init, see if can be done faster

    // Give couple of seconds to make sure there're no exceptions upon lanuching Python server
    await Future.delayed(const Duration(seconds: 2));

6. Look into singing (App, Mac) and distribution flow for binaries
7. Python has been loaded -> check for better probing, e.g. now when you start client it always says all is good
8. Authentication flow
   • Authentication in the web with JWT passed in server-side cookie via web proxy
9. Tailor ./example launch.json for 3 platforms
10. Plugin codegen and build actions into IDE events, e.g. see how to do more convenient update of .proto and Python parts without forgetting-to-run/running scripts manually
11. server.py, add param to determine if localhost (local only) or [::] (inbouind remote connection) will be used (server.add_insecure_port('[::]:50051'))
12. When debugging the app may stop silently upon launching due to swallowed exceptions when probing Python
    • VSCode Debug Pane, in the bottom left there's BREAKPOINTs section, disable expcetions
13. Updte iOS ios/Runner/Info.plist to allow gRPC networking
14. VScode debugging, sort out auto start of server

        {
            "name": "app (remote server, auto start)",
            "type": "dart",
            "request": "launch",
            "program": "app/lib/main.dart",
            "toolArgs": [
                "--dart-define",
                "useRemote=true",
              ],
            "preLaunchTask": "start server",
            //"postDebugTask": "stop server" // this one kills Flutter UI when doing hot restart, better keep server running to keep host restart working
        },
    

15. Add Dart alternatives to shell scripts and publish as package to pub.dev

• PyInstaller 8-9s, Nuitka 7-8s (M1 Pro)
• Consider use -onedir arg with PyInstaller and zip/unzip it via Flutter

I am getting this issue after creating a self-contained Python executable.

Failure while launching server process. It stopped right after starting. Exit code: 1