• Client, Windows, Python 3.5, pycharm
• Server, CentOS7.2, Docker 18.09.0

1. Docker open remote connection, modify /usr/lib/systemd/system/docker.service files.

vim /usr/lib/systemd/system/docker.service 

Find [Service] in the file

[Service]  
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock  

2. After the modification, Docker needs to read the configuration file and restart the Docker service.

 systemctl daemon-reload
 systemctl restart docker

3. Open the docker remote service connection port. Note that this machine system is CentOS7.

Firewall-CMD-Zone = Public-ADD-PORT = 2375/TCP-PerManent 
 Firewall-CMD-RELOAD 
 #Can be opened by the following command to see if 2375/TCP is turned on. 
 Firewall-CMD-List-ALL

4. Install docker in pycharm

pip install docker

In setting, check whether the docker is installed. If not, search in the Install Package after searching in the+number on the right.

5. Test connection

import docker
import json
client = docker.DockerClient(base_url='tcp://192.168.102.11:2375')
cls = client.containers.run("ubuntu", "echo hello world")