I work on a private project that simulates a network of 3 hosts.
The projet hierarchy looks like that:

project
  build
    Dockerfile
  code
    main.py
  docker-compose.yml

The Dockerfile has this line

WORKDIR /code

In docker-compose I have 3 services, which each represents a host (as described inthe first line).
I connect via ssh from host1 to host2
I use scp to copy a file to folder code:

scp.put("main.py", "code")

Then, I used ssh to run the file with python:

ssh.exec_command("python main.py")

I get this error:

python: can't open file '/root/main.py': [Errno 2] No such file or directory

If I set the working folder to code,
Where did the root folder came from?!