I installed the Odoo runtime environment on a VM, OS is debian, python environment is virtual env. 
The development tool is VSCode, which accesses and modifies Odoo's source files through remote-ssh extension.
When I wanted to debug the code, I added the following configuration to VSCode's launch.json: 

         {
             "name": "Odoo",
             "type": "python",
             "request": "launch",
             "stopOnEntry": false,
             "pythonPath": "$ {workspaceRoot} /../ odoo-env / bin / python3",
             "program": "$ {workspaceRoot} / odoo-bin",
             "args": [
               "-c",
               "~/odoo13.conf"
             ],
             "cwd": "$ {workspaceRoot}",
             "console": "integratedTerminal",
         } 

But this configuration does not work properly, the error message is "OSError [Errno 98]  Address already in use ".
This seems to be a configuration for debugging odoo locally.