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Is it possible to start a node.js app from within a python script on a raspberry pi?
On the command line I run sudo node myscript.js
could I use a library like os?
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const spawn = require("child_process"). spawn; const pythonProcess = spawn('python',["path/to/script.py", arg1, arg2, ...]); Then all you have to do is make sure that you import sys in your python script, and then you can access arg1 using sys. argv[1] , arg2 using sys.
The usual way to run a Node. js program is to run the globally available node command (once you install Node. js) and pass the name of the file you want to execute. While running the command, make sure you are in the same directory which contains the app.
The first line of file shall be:
#!/usr/bin/python
You can call command with subprocess.call:
from subprocess import call
# Note that you have to specify path to script
call(["node", "path_to_script.js"])
Then you have to set +x permissions for file to be executable:
chmod +x filename.py
Know you are ready to go:
./filename.py
Note: checkout Raspberry Pi Stack Exchange, you can find a lot of use full info there.
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