Problem connecting to the PostgresSQL from Docker

Sample from class:

try:
        conn = psycopg2.connect(
            database='ytbstatsdb',
            host='127.0.0.1',
            user='admin',
            password='admin123',
            port='5432'
        )
    except psycopg2.Error as e:
        print(e)
    
cursor = conn.cursor()
engine = sqlalchemy.create_engine('postgresql://admin:admin123@localhost:5432/ytbstatsdb')
df_videos_details.to_sql('testtable', engine, if_exists='replace', index=False)

Docker file (docker-compose.yaml):

services:
  db:
    image: postgres
    ports:
      - 5432:5432
    restart: always
    environment:
      POSTGRES_USER: admin
      POSTGRES_PASSWORD: admin123
      POSTGRES_DB: ytbstatsdb
  adminer:
    image: adminer
    restart: always
    depends_on:
      - db
    ports:
      - 8080:8080

My error:

connection to server at "0.0.0.0", port 5432 failed: Cannot assign requested address (0x00002741/10049)
    Is the server running on that host and accepting TCP/IP connections?

The db in docker is created:
docker-image

Hello!

I’m trying to connect to a database using docker. Accessing http://localhost:8080 is working, I can log in to Adminer and work with my database on the Adminer interface, but when I try to connect using the code from the class with psycopg2 I receive the specified error.

Do you have any clue on why I get it?

I restarted the pc to clear all the services and reset it to the essential ones, changed the port to 7432 and so on. Nothign works…