I have installed python 3.6.5 and Django 2.0.4 on windows 10 OS.

In vs code open command palette (Ctrl+Shift+p).

There select Python:Select Interpreter

Close your vs code and then try. If it still does not work. Try again by changing to:-

Python:Build Workspace symbols and re-open the vs code. That's all i did and got intelligence enabled.

This can be caused by many reasons, some of them are as follows.

1. Python executable path in vscode is incorrect

   • Solution: Configure the path to the python executable in settings.json. Remember to restart vscode after.

2. The module is located in a non-standard location

   • Solution: Configure settings.json to include this location for autocompletion to work. An example (for Linux) used to add a custom module for the workspace:

     {
       "python.pythonPath": "/usr/bin/python",
       "python.autoComplete.extraPaths": [
         "${workspaceFolder}/customModule"
       ]
     }
     

3. vscode was not launched from the active virtual environment

   • Solution: The path to the modules is set when a virtual environment is activated. Launch vscode from a terminal with the correct virtual environment activated

Intellisense was provided by the Language Server, The default value of it is Default.

Default: Automatically select a language server: Pylance if installed and available, otherwise fallback to Jedi.

So, it's a little weird of your problem, could you try to install the Pylance and set it as the Language Server? Add this in the settings.json file:

"python.languageServer": "Pylance",