You can set it in command prompt - but it wont persist between sessions
kartheek
n4thyra
Ahh, understood, thanks! However, even when ERLPORT_PYTHON is set, the path is not picked up and shows the old output.
0
kartheek
You made sure environment variable was set by printing them using command set in command prompt? If it is not reflecting you can open new command prompt or powershell.
This is weird - ERLPORT_PYTHON picks up everytime I set and restart iex.
0
n4thyra
What I did was
c:\Users\Jiri\Desktop\Phoenix\Pluto\phx>set ERLPORT_PYTHON=C:\
c:\Users\Jiri\Desktop\Phoenix\Pluto\phx>echo %ERLPORT_PYTHON%
C:\
c:\Users\Jiri\Desktop\Phoenix\Pluto\phx>mix phx.server
[warning] Phoenix is unable to create symlinks. Phoenix' code reloader will run considerably faster if symlinks are allowed. On Windows, the lack of symlinks may even cause empty assets to be served. Luckily, you can address this issue by starting your Windows terminal at least once with "Run as Administrator" and then running your Phoenix application.
[info] Running PlutoWeb.Endpoint with cowboy 2.9.0 at 127.0.0.1:4000 (http)
[info] Access PlutoWeb.Endpoint at http://localhost:4000
[debug] QUERY OK db=16.0ms idle=16.0ms
SELECT * FROM get_all_settings() []
[debug] Maid started to clean images
[debug] %Postgrex.Query{cache: :reference, columns: nil, name: "", param_formats: nil, param_oids: nil, param_types: nil, ref: nil, result_formats: nil, result_oids: nil, result_types: nil, statement: "SELECT get_all_photos()", types: nil} uses unknown oid(s) 29239forcing us to reload type information from the database. This is expected behaviour whenever you migrate your database.
[debug] QUERY OK db=0.0ms queue=15.0ms idle=63.0ms
SELECT get_all_photos() []
[warning] Could not get files from upload directory. reason: :enoent. path: c:/Users/Jiri/Desktop/Phoenix/Pluto/phx/_build/dev/lib/pluto/priv/upload
[info] Maid finished cleaning task (thumbnails enqueued)
[error] GenServer #PID<0.566.0> terminating
** (stop) :enoent
erlang.erl:2217: :erlang.open_port({:spawn, 'c:\\Users\\Jiri\\AppData\\Local\\Microsoft\\WindowsApps\\python3.exe -V'}, [{:line, 80}, :stderr_to_stdout, :hide])
(erlport 0.10.1) c:/Users/Jiri/Desktop/Phoenix/Pluto/phx/deps/erlport/src/erlport_options.erl:227: :erlport_options.get_version/1
(erlport 0.10.1) c:/Users/Jiri/Desktop/Phoenix/Pluto/phx/deps/erlport/src/python_options.erl:177: :python_options.check_python_version/1
(erlport 0.10.1) c:/Users/Jiri/Desktop/Phoenix/Pluto/phx/deps/erlport/src/python_options.erl:161: :python_options.find_python/1
(erlport 0.10.1) c:/Users/Jiri/Desktop/Phoenix/Pluto/phx/deps/erlport/src/python_options.erl:146: :python_options.get_python/1
(erlport 0.10.1) c:/Users/Jiri/Desktop/Phoenix/Pluto/phx/deps/erlport/src/python_options.erl:88: :python_options.parse/2
(erlport 0.10.1) c:/Users/Jiri/Desktop/Phoenix/Pluto/phx/deps/erlport/src/python.erl:168: :python.start/3
(pluto 0.1.0) lib/pluto/image/pil_worker.ex:112: Pluto.Image.PilWorker.handle_info/2
(stdlib 3.12) gen_server.erl:637: :gen_server.try_dispatch/4
(stdlib 3.12) gen_server.erl:711: :gen_server.handle_msg/6
(stdlib 3.12) proc_lib.erl:249: :proc_lib.init_p_do_apply/3
Last message: {:create_port, "c:/Users/Jiri/Desktop/Phoenix/Pluto/phx/_build/dev/lib/pluto/priv/python"}
State: %{arg: "c:/Users/Jiri/Desktop/Phoenix/Pluto/phx/_build/dev/lib/pluto/priv/python", max_size: nil, port: nil}
I have also tried placing the environment variable in system settings
0
kartheek
If I set environment variable and it is invalid path - it will be giving different error
iex(1)> :python.start()
{:error, {:invalid_env_var, {'ERLPORT_PYTHON', '/sdf'}, :not_found}}
Your stacktrace is different. Are you passing options to :python.start() ?
0
n4thyra
In my web app, this piece of code is used
:python.start_link(
python: String.to_charlist("python3"),
python_path: String.to_charlist(python_path)
)
I now created a new project to test things out, and despite the fact that no options are provided, I still get an error.
$ iex -S mix
Interactive Elixir (1.13.3) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> :python.start()
** (ErlangError) Erlang error: :enoent
erlang.erl:2217: :erlang.open_port({:spawn, 'c:\\Users\\Jiri\\AppData\\Local\\Microsoft\\WindowsApps\\python.exe -V'}, [{:line, 80}, :stderr_to_stdout, :hide])
(erlport 0.10.1) c:/Users/Jiri/Desktop/gg/deps/erlport/src/erlport_options.erl:227: :erlport_options.get_version/1
(erlport 0.10.1) c:/Users/Jiri/Desktop/gg/deps/erlport/src/python_options.erl:177: :python_options.check_python_version/1
(erlport 0.10.1) c:/Users/Jiri/Desktop/gg/deps/erlport/src/python_options.erl:161: :python_options.find_python/1
(erlport 0.10.1) c:/Users/Jiri/Desktop/gg/deps/erlport/src/python_options.erl:132: :python_options.get_python/1
(erlport 0.10.1) c:/Users/Jiri/Desktop/gg/deps/erlport/src/python_options.erl:88: :python_options.parse/2
(erlport 0.10.1) c:/Users/Jiri/Desktop/gg/deps/erlport/src/python.erl:168: :python.start/3
0
kartheek
Can you try this once in iex - does it work ?
:python.start([{:python, 'c:/Users/Jiri/AppData/Local/Microsoft/WindowsApps/python.exe'}])
0
n4thyra
I’ll give it a go on Monday, sadly, I’m out of the office and I have no issues with my laptop, which runs on Linux.
I am pretty sure it will not work, there’s something wrong with Python installed via WindowsApps.
I’ve been told to install Python through an external source, which is supposed to fix the issue.
Thanks for your help, I’ll give you an update on Monday!
0
kartheek
n4thyra
I had to install Python3 from the web and put the path of “WindowsApps” below everything else
C:\Users\Jiri\AppData\Local\Programs\Python\Python310\Scripts\
C:\Users\Jiri\AppData\Local\Programs\Python\Python310\
%USERPROFILE%\AppData\Local\Microsoft\WindowsApps
Then I had to create a symbolic link for python3
mklink "C:\path\to\symlink\python3.exe" "C:\path\to\Python3\python.exe"
0