azure-fuctions-core-tools@4を使用したローカルデバッグ(python)について

Question

VisualStudioCodeを用い、AzureFunctions関数(python)開発を行なっております。

azure-fuctions-core-tools@4を使用したローカルデバッグ(python)について、デバッグ実行したとき、ブレイクポイントにヒットしてくれず、正常終了する挙動です。ブレイクポイントにヒットしてくれるように実行するための解決策あればご教授いただきたいです。

【pythonバージョン】

3.9.3

【tasks.json】

{
  "version": "2.0.0",
  "tasks": [
    {
      "type": "func",
      "label": "func: host start",
      "command": "host start",
      "problemMatcher": "$func-python-watch",
      "isBackground": true,
      "dependsOn": "pip install (functions)"
    },
    {
      "label": "pip install (functions)",
      "type": "shell",
      "osx": {
        "command": "${config:azureFunctions.pythonVenv}/bin/python -m pip install -r requirements.txt"
      },
      "windows": {
        "command": "${config:azureFunctions.pythonVenv}\\Scripts\\python -m pip install -r requirements.txt"
      },
      "linux": {
        "command": "${config:azureFunctions.pythonVenv}/bin/python -m pip install -r requirements.txt"
      },
      "problemMatcher": []
    }
  ]
}

【launch.json】

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Attach to Python Functions",
      "type": "python",
      "request": "attach",
      "port": 9091,
      "preLaunchTask": "func: host start"
    }
  ]
}

Answer 1

@ShotaTsuji , thank you for reaching out to Microsoft Q&A for this question.

I see that you are not hitting breakpoint in VS code when debugging Function App. For the VS Code debugger to attach to the running process, the application has to be launched under debugger. You can launch by

1. Pressing "F5" in VS code (instead of using the func host start cmd from terminal)
2. Or you can use the button in the VS code status bar (bottom left corner) --> Attach to Python Functions (launch.json)

For more details, see Debug functions locally

Hope this helps.

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