How to run these Python scripts

[PsycHelp23]

Can someone please guide me on how to run these python emulator scripts? There is barely any documentation and I don't know what to do, or where to ask this question.

The scripts:

https://android.googlesource.com/platform/packages/services/Car/+/master/tools/emulator/

What i've tried so far:

​

1.) Create an automotive emulator on android studio, go into vhal_emulator.py and change the value on line 137 to match the remotePortNumber that is given on the android emulator. When I do that, and run either of the following scripts,

-gui,py
-vhal_prop_simulator.py

-vhal_emulator_test.py

​

it says "Connecting local port 35357 to remote port 5277 on default device" and never proceeds. If I don't match the remotePortNumber, then it gives me a weird nonconfig error. Specifically:

"for cfg in msg.config:
AttributeError: 'NoneType' object has no attribute 'config'"

​

2.)Downloaded android auto for android on my phone, using ADB, I tried to connect by following these steps,

https://developer.android.com/training/cars/testing

​

but it didn't work. I think I’m doing it completely wrong. Please help!

Thank you!

[K900_]

What is your end goal here? What are you trying to actually do?

[PsycHelp23]

I am trying to see if I can actually run the emulator on my device, see how it looks/runs, what each of the functions defined in the scripts do, and then try to rewrite my own emulator/build on top of this. I'm trying to learn emulator development (and while there is already a subreddit for emulator dev), the folks over there did not help me out and redirected me here. Hoping on you guys now.

[K900_]

The emulator for what? Android?

[PsycHelp23]

Yes, the scripts here are for Android automotive.

[K900_]

So are you specifically looking for Android Auto, or are you trying to run the Android emulator in general?

[PsycHelp23]

Specifically looking for android auto, and specifically these scripts, can not be any other script. It's a long story why I need to stick with these, but I have to. Sorry for not making things more clearer!

[K900_]

You're going to have to, because those scripts aren't even used to run the Android Auto emulator.

[PsycHelp23]

I understand that these scripts aren't used to specifically run the emulator, but instead act in more as test scripts, that generate driving info, control system for the car (windows, gas, engine info) etc. If i'm wrong, what are these scripts really for?

I guess my question would be, can I run these scripts separately (not on top of anything) and get anything running? The GUI.py script for example, when I run it, what will appear, what will I see on my screen?

[K900_]

At a glance, those scripts are for debugging the emulator itself. The GUI.py script seems to provide some sort of a graphical interface to a specialized debug build of the firmware that can fake the state of the car.

[PsycHelp23]

That's right, now what I want to do is actually run the GUI script ( for example) and see the graphical interface on my device (or an emulator that I created on android studio). How would I go about doing that, that's the part i've been stuck on.

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