Hello, I’m trying to get my app working on Windows and I can’t figure out what the issue is. Everything works flawlessly on Linux(Xubuntu) but when I’m trying to run my app on Windows I’m constantly getting these errors. It looks like Phoenix can’t spawn python3 instances, but I don’t know why. I a…

There may be a $PATH issue. Have you tried? path = "C:\\Users\\Jiri\\AppData\\Local\\Microsoft\\WindowsApps\\python3.exe" Port.open({:spawn_executable, path}, [:binary, args: ["-V"]])

This solution does not work, either. C:\Users\Jiri>iex Interactive Elixir (1.13.3) - press Ctrl+C to exit (type h() ENTER for help) iex(1)> path = "C:\\Users\\Jiri\\AppData\\Local\\Microsoft\\WindowsApps\\python3.exe" "C:\\Users\\Jiri\\AppData\\Local\\Microsoft\\WindowsApps\\python3.exe" iex(2)> Po…

Curious. And what do you get from System.find_executable("python") as per `'Port - spawn_executable docs?

The output is following iex(2)> System.find_executable("python") "c:/Users/Jiri/AppData/Local/Microsoft/WindowsApps/python.exe"

Ah ok I see, try to use that output. path = System.find_executable("python") Port.open({:spawn_executable, path}, [:binary, args: ["-V"]]) I think it was my fault for misunderstanding the way erlang output the path name vs. elixir.

Environment variable ERLPORT_PYTHON can be set to python interpreter path. ErlPort tries to pick up from this env variable by default.

Sadly, no luck. It gives the same error. iex(1)> path = System.find_executable("python") "c:/Users/Jiri/AppData/Local/Microsoft/WindowsApps/python.exe" iex(2)> Port.open({:spawn_executable, path}, [:binary, args: ["-V"]]) ** (ErlangError) Erlang error: :enoent erlang.erl:2217: :erlang.open_port…

It may be a dumb question, but how can I change the path? However, even the current path points to a valid path.

[image] n4thyra: It may be a dumb question, but how can I change the path? You can set it in command prompt - but it wont persist between sessions [image] set Reference article for set, which displays, sets, or removes cmd.exe environment variables. …

Ahh, understood, thanks! However, even when ERLPORT_PYTHON is set, the path is not picked up and shows the old output.

Elixir Programming Language Forum

Problem with spawning a python3 process on Windows

Questions & Help Questions

kartheek February 25, 2022, 4:08pm 20

App execution alias thing i guess