Hot reload not working when `app.py` has `+x` permissions

[Dustella]

Hot reload not working when app.py has +x permissions.

To replicate, create app.py like this, run it in debug mode

from quart import Quart

app = Quart(__name__)


@app.route("/api")
async def json():
    return {"hello": "world"}

if __name__ == "__main__":
    app.run(debug=True)

and give this file +x permissions on Linux

chmod +x app.py

use python app.py to run the code. Saving the file will cause an error like this:

[2025-02-11 13:31:59 +0800] [10620] [INFO] Running on http://127.0.0.1:5000 (CTRL + C to quit)
Traceback (most recent call last):
  File "/home/user/Code/quart_example/./app.py", line 11, in <module>
    app.run(debug=True)
  File "/home/user/miniconda3/lib/python3.11/site-packages/quart/app.py", line 890, in run
    restart()
  File "/home/user/miniconda3/lib/python3.11/site-packages/quart/utils.py", line 170, in restart
    os.execv(executable, [executable] + args)
OSError: [Errno 8] Exec format error

But by running the code using quart run, hot reload will work fine.

Environment:

• Python version: Python 3.11.11 (main, Dec 11 2024, 16:28:39) [GCC 11.2.0] on linux
• Quart version: Quart 0.20.0

[Dustella]

After some digging, I found the error is from https://github.com/pallets/quart/blob/b5593ca4c8c657564cdf2d35c9f0298fce63636b/src/quart/utils.py#L156

why? I know we want to know whether I am ran via quart ... or python xxx.py, but it seems it doesn't even matter, just rerun the executable with args will do good. dealing with xxx.exe is a Windows specific problem, and there is no need to know how it is booted in linux.

[Dustella]

after some testing, altering https://github.com/pallets/quart/blob/b5593ca4c8c657564cdf2d35c9f0298fce63636b/src/quart/utils.py#L156

        else:
-            if script_path.is_file() and os.access(script_path, os.X_OK):
-                # hypercorn run:app --reload
-                executable = str(script_path)
-            else:
-                # python run.py
-                args = [str(script_path), *args]
+           args = [str(script_path), *args]

will resolve this issue on linux, hot reloading working both with quart run and python xxx.py. Please let me know if someone tested on Mac