从 py 脚本在虚拟环境中调用命令

Question

I'm very new to coding and software, so please stick with me. I am trying to execute a command in my Raspberry Pi terminal via a Python script. I want to be able to run this pi script from the Desktop. The command to execute is (rpi-deep-pantilt-env) pi@raspberrypi:~/rpi-deep-pantilt $ rpi-deep-pantilt detect So as you can see, I need to cd into rpi-deep-pantilt, then activate my virtual environment, then run the command all via the py script.

Answer 1

A simple shell script to do what you ask:

#!/bin/sh
cd "$HOME"/rpi-deep-pantilt
. ./rpi-deep-pantilt-env/bin/activate
./rpi-deep-pantilt detect "$@"

Most or all of this is probably unnecessary. I guess you could run

#!/bin/sh
d="$HOME"/rpi-deep-pantilt
exec "$d"/rpi-deep-pantilt-env/bin/python "$d"/rpi-deep-pantilt detect "$@"

though if your Python script has hardcoded file paths which require it to run in a specific directory, that's a bug which will prevent this from working.

The "$@" says to pass on any command-line arguments, so if you saved this script as pant , running pant blind mice will pass on the arguments blind and mice to your Python script. (Of course, if it doesn't accept additional command-line arguments after detect , this is unimportant, but I'd still pass them on so you can generate an error message, rather than have them be ignored as if they were not there.)