Implement detection and reporting of unused imports

[MikhailArkhipov]

microsoft/vscode-python#43
microsoft/PTVS#254

[MikhailArkhipov]

Adding some estimate. @AlexanderSher - it needs further clarification.

[DonJayamanne]

Blocked by microsoft/language-server-protocol#500

[psarka]

The issue microsoft/language-server-protocol#500 seems to be closed now, so should this be unblocked?

(Anxiously waiting for this feature!)

[jakebailey]

Not until LSP 3.15 is released, and then not until there's a client implementation for the feature.

microsoft/language-server-protocol@4e17257

[micimize]

Would this include optional removal of said imports? Currently I'm using autoflake as a task which I then trigger on save, but this results in some "content of the file is newer" complaints.

task.json#tasks entry

    {
      "type": "process",
      "label": "autoflake.removeUnusedImports",
      "command": "${command:python.interpreterPath}",
      "args": [
        "-m",
        "autoflake",
        "-i",
        "--remove-all-unused-imports",
        "${file}"
      ]
    },

[debonte]

@micimize what language server are you using? If you're using Pylance, head over to Pylance's issue tracker at https://github.com/microsoft/pylance-release/issues

[judej]

Thank you for the report. This project is no longer active. If you are using the Python language server in VSCode, the language server you are using is Pylance and please the http://github.com/microsoft/pylance-release to report issues.

If you are using Visual Studio, then, please use http://github.com/microsoft/PTVS to report issues.

thank you