Issue
I'll try to be as clear as possible with what I'm trying to aim for. I have a running Python script on my Raspberry Pi and I'd like multiple users to send inputs to the script remotely (through SSH or anything else that might work better). So for example if I have this script running:
Name = input ("Please type in your name. \n")
type (Name)
print ("Hello there" , Name)
time.sleep(3) # Pause for 3 seconds.
I want users to send names to this script remotely from devices that are connected to the same network as the Raspberry Pi.
If possible, I also want to implement the following functionalities:
Sending the output (aka the printed text) back to the specific device the input came from.
A queuing system: If multiple users send names at the same time, the script will take the names in order, one by one.
I know it's a lot to ask for, but I'd really appreciate if someone could help me get started with this by pointing me in the right direction. I've searched around quite a bit for the past few days but I haven't really come across anything that fits my needs.
Edit: I'm running this on PYTHON 3
Solution
Your comment that you would like to communicate (via network) to the script directly, opens up a world of possibilities. You have to modify your Python script a little though, because it won't communicate via stdin/stdout any longer.
I'm still not entirely sure how you want things to work but it does sound to me that a solution based around RPC can possibly work for you. May I suggest you have a look at Pyro4? Basically what that does for you is enable you to do normal Python method calls, but over the network, to code running on another computer.
So you can set up a server on your Pi (that needs to run continuously) which accepts remote calls from other computers, and can then call into your python code on the pi. It can process calls in parallel or in sequence. You didn't say if you need any form of security, but some basic security features are provided (no built-in encryption or communication over TLS yet, sorry).
A simple example is here and lots more are on github so you can have a look to see if this fits your requirements?
Another solution that doesn't require third party libraries is perhaps to write a WSGI http server that calls your script, run this on the pi, and access it via HTTP from your other computers.
Answered By - Irmen de Jong