vscode-python-debug-specific-file-launch.json

//Add the following launch configuration to launch.json. I create
//a specific launch.json in my workspace folder as this setting
//will likely be different for each workspace folder.
//change the "startupFileNameHere" to point to your startup file.

"configurations": [
        {
            "name": "Python: Run Startup File",
            "type": "python",
            "request": "launch",
            "program": "${workspaceFolder}/startupFileNameHere.py",
            "console": "integratedTerminal",
            "justMyCode": true
        }