Импорт модуля в сложной структуре, питон

from socket import *
import sys
import itstime4science.utils.dataemulator.telemetrySenderEmulator
import time
from itstime4science.params import params

Parser = params.Parser()
gen = telemetrySenderEmulator.generateData()
argv = Parser.createParser()
ip_and_port = argv.parse_args(sys.argv[1:])
host = ip_and_port.ip
port = int(ip_and_port.port)
addr = (host, port)
tcp_socket = socket(AF_INET, SOCK_STREAM)
tcp_socket.connect(addr)

while(True):
    try:
        data = gen.getMessage()
        print("Gen data: ", data)
        if not data:
            tcp_socket.close()
            sys.exit(1)
        data = str.encode(data)
        tcp_socket.send(data)
        print(data)
        time.sleep(0.5)
    except KeyboardInterrupt:
        print("\nCtr + C")
        tcp_socket.close()
        sys.exit(1)

tcp_socket.close() 

.
├── folder
│   ├── __init__.py
│   ├── lib
│   │   ├── __init__.py
│   │   └── params.py
│   ├── server
│   │   ├── __init__.py
│   │   └── server.py
│   ├── utils
│   │   ├── client
│   │   │   ├── client.py
│   │   │   └── __init__.py
│   │   └── __init__.py
│   └── web
│       ├── backend
│       │   ├── app.py
│       │   └── __init__.py
│       └── __init__.py
└── run.py

import folder.lib.params

foo
   __init__.py
   setup.py <-- google it
   lib
     __init__.py
     params.py

argo@argo:~/volchkov-dev/itstime4science$ sudo docker-compose up
Recreating itstime4science_web_1
Recreating itstime4science_loadb_1
Attaching to itstime4science_web_1, itstime4science_loadb_1
web_1    | Traceback (most recent call last):
web_1    |   File "backend/app.py", line 2, in <module>
web_1    |     import itstime4science.lib.params
web_1    | ImportError: No module named 'itstime4science'
itstime4science_web_1 exited with code 1

Attaching to itstime4science_web_1, itstime4science_loadb_1
web_1    | Traceback (most recent call last):
web_1    |   File "backend/app.py", line 2, in <module>
web_1    |     from ...lib import params
web_1    | SystemError: Parent module '' not loaded, cannot perform relative import
itstime4science_web_1 exited with code 1

PYTHONPATH="$PYTHONPATH:/path/to/project" python script.py