为什么pylint 的错误波浪线没有显示在python Visual Studio 代码中？

Question

我在 Ubuntu 中为 python3 使用 vscode。错误波浪线已停止为 Python 工作（它适用于其他语言）。我正在使用 Microsoft 的 Python 扩展。
vscode v1.41.1 Ubuntu v18.04

这是我尝试过的：

• 我想也许是因为我安装了 anaconda，所以卸载了它但没有修复它。
• 然后我在删除其配置后重新安装了 vs 代码，.config/code但这也不起作用。
• 还从命令面板将 python linting 设置为 true

它没有显示错误波浪线：

这是 Microsoft 的 python 扩展对 linting 的贡献（抱歉可读性差）：

Whether to lint Python files.   true python.linting.flake8Args  Arguments passed in. Each argument is a separate item in the array.  python.linting.flake8CategorySeverity.E    Severity of Flake8 message type 'E'.    Error python.linting.flake8CategorySeverity.F   Severity of Flake8 message type 'F'.    Error python.linting.flake8CategorySeverity.W   Severity of Flake8 message type 'W'.    Warning python.linting.flake8Enabled    Whether to lint Python files using flake8   false python.linting.flake8Path Path to flake8, you can use a custom version of flake8 by modifying this setting to include the full path.  flake8 python.linting.ignorePatterns    Patterns used to exclude files or folders from being linted.    .vscode/*.py,**/site-packages/**/*.py python.linting.lintOnSave Whether to lint Python files when saved.    true python.linting.maxNumberOfProblems Controls the maximum number of problems produced by the server. 100 python.linting.banditArgs   Arguments passed in. Each argument is a separate item in the array.  python.linting.banditEnabled   Whether to lint Python files using bandit.  false python.linting.banditPath Path to bandit, you can use a custom version of bandit by modifying this setting to include the full path.  bandit python.linting.mypyArgs  Arguments passed in. Each argument is a separate item in the array. --ignore-missing-imports,--follow-imports=silent,--show-column-numbers python.linting.mypyCategorySeverity.error    Severity of Mypy message type 'Error'.  Error python.linting.mypyCategorySeverity.note  Severity of Mypy message type 'Note'.   Information python.linting.mypyEnabled  Whether to lint Python files using mypy.    false python.linting.mypyPath   Path to mypy, you can use a custom version of mypy by modifying this setting to include the full path.  mypy python.linting.pycodestyleArgs Arguments passed in. Each argument is a separate item in the array.  python.linting.pycodestyleCategorySeverity.E   Severity of pycodestyle message type 'E'.   Error python.linting.pycodestyleCategorySeverity.W  Severity of pycodestyle message type 'W'.   Warning python.linting.pycodestyleEnabled   Whether to lint Python files using pycodestyle  false python.linting.pycodestylePath    Path to pycodestyle, you can use a custom version of pycodestyle by modifying this setting to include the full path.    pycodestyle python.linting.prospectorArgs   Arguments passed in. Each argument is a separate item in the array.  python.linting.prospectorEnabled   Whether to lint Python files using prospector.  false python.linting.prospectorPath Path to Prospector, you can use a custom version of prospector by modifying this setting to include the full path.  prospector python.linting.pydocstyleArgs    Arguments passed in. Each argument is a separate item in the array.  python.linting.pydocstyleEnabled   Whether to lint Python files using pydocstyle   false python.linting.pydocstylePath Path to pydocstyle, you can use a custom version of pydocstyle by modifying this setting to include the full path.  pydocstyle python.linting.pylamaArgs    Arguments passed in. Each argument is a separate item in the array.  python.linting.pylamaEnabled   Whether to lint Python files using pylama.  false python.linting.pylamaPath Path to pylama, you can use a custom version of pylama by modifying this setting to include the full path.  pylama python.linting.pylintArgs    Arguments passed in. Each argument is a separate item in the array.  python.linting.pylintCategorySeverity.convention   Severity of Pylint message type 'Convention/C'. Information python.linting.pylintCategorySeverity.error Severity of Pylint message type 'Error/E'.  Error python.linting.pylintCategorySeverity.fatal   Severity of Pylint message type 'Fatal/F'.  Error python.linting.pylintCategorySeverity.refactor    Severity of Pylint message type 'Refactor/R'.   Hint python.linting.pylintCategorySeverity.warning  Severity of Pylint message type 'Warning/W'.    Warning python.linting.pylintEnabled    Whether to lint Python files using pylint.  true python.linting.pylintPath  Path to Pylint, you can use a custom version of pylint by modifying this setting to include the full path.  pylint python.linting.pylintUseMinimalCheckers  Whether to run Pylint with minimal set of rules.    true

python.linting.pylintEnabled 是：true

python.linting.pylintPath 是：pylint

Visual Studio 的开发人员工具控制台中的所有错误：

console.ts:137 [Extension Host] Error Python Extension: 2020-01-18 18:35:53: Failed to serialize gatherRules for DATASCIENCE.SETTINGS [TypeError: Cannot convert object to primitive value  at Array.join (<anonymous>) at Array.toString (<anonymous>) at /home/manik/.vscode/extensions/ms-python.python-2020.1.58038/out/client/extension.js:1:12901 at Array.forEach (<anonymous>)  at Object.l [as sendTelemetryEvent] (/home/manik/.vscode/extensions/ms-python.python-2020.1.58038/out/client/extension.js:1:12818)  at C.sendSettingsTelemetry (/home/manik/.vscode/extensions/ms-python.python-2020.1.58038/out/client/extension.js:75:707093) at C.r.value (/home/manik/.vscode/extensions/ms-python.python-2020.1.58038/out/client/extension.js:1:87512) at Timeout._onTimeout (/home/manik/.vscode/extensions/ms-python.python-2020.1.58038/out/client/extension.js:1:86031)    at listOnTimeout (internal/timers.js:531:17)    at processTimers (internal/timers.js:475:7)]
t.log @ console.ts:137
2console.ts:137 [Extension Host] Notification handler 'textDocument/publishDiagnostics' failed with message: Cannot read property 'connected' of undefined
t.log @ console.ts:137
2console.ts:137 [Extension Host] (node:21707) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
t.log @ console.ts:137
$logExtensionHostMessage @ mainThreadConsole.ts:39
_doInvokeHandler @ rpcProtocol.ts:398
_invokeHandler @ rpcProtocol.ts:383
_receiveRequest @ rpcProtocol.ts:299
_receiveOneMessage @ rpcProtocol.ts:226
(anonymous) @ rpcProtocol.ts:101
fire @ event.ts:581
fire @ ipc.net.ts:453
_receiveMessage @ ipc.net.ts:733
(anonymous) @ ipc.net.ts:592
fire @ event.ts:581
acceptChunk @ ipc.net.ts:239
(anonymous) @ ipc.net.ts:200
t @ ipc.net.ts:28
emit @ events.js:200
addChunk @ _stream_readable.js:294
readableAddChunk @ _stream_readable.js:275
Readable.push @ _stream_readable.js:210
onStreamRead @ internal/stream_base_commons.js:166

用于输出python在output面板：

User belongs to experiment group 'AlwaysDisplayTestExplorer - control'
User belongs to experiment group 'ShowPlayIcon - start'
User belongs to experiment group 'ShowExtensionSurveyPrompt - enabled'
User belongs to experiment group 'DebugAdapterFactory - experiment'
User belongs to experiment group 'AA_testing - experiment'
> conda --version
> pyenv root
> python3.7 -c "import sys;print(sys.executable)"
> python3.6 -c "import sys;print(sys.executable)"
> python3 -c "import sys;print(sys.executable)"
> python2 -c "import sys;print(sys.executable)"
> python -c "import sys;print(sys.executable)"
> /usr/bin/python3.8 -c "import sys;print(sys.executable)"
> conda info --json
> conda env list
Starting Microsoft Python language server.
> conda --version
> /usr/bin/python3.8 ~/.vscode/extensions/ms-python.python-2020.1.58038/pythonFiles/interpreterInfo.py
> /usr/bin/python3.8 ~/.vscode/extensions/ms-python.python-2020.1.58038/pythonFiles/interpreterInfo.py

如何让波浪线再次工作？

Answer 1

在您的settings.json文件中（settings.json在命令面板中搜索），声明以下内容：

"python.linting.pylintEnabled": true, "python.jediEnabled": false

如果您只想更改工作区，请更改settings.json文件.vscode夹中的文件

在最新版本的 Visual Studio 代码中，工作区不会从复选框注册设置，因此您必须在 settings.json 中明确声明要为工作区启用的设置。Flake8 不受此影响。因此，Pylint 和 Microsoft Python 语言服务器似乎无法正常工作。

旁注：从 sys-temd 在github.com/microsoft/vscode-python/issues上的回复中得到这个解决方案

Answer 2

我尝试过但不起作用

1. pip install -U pylint
2. 宣布"python.linting.pylintEnabled": true, "python.jediEnabled": false

然后我尝试重新创建一个全新的settings.json，pylint 结果工作正常。

因此，我追踪哪一行影响 pylint。

就我而言，这是从"python.linting.pylintArgs":

解决方案

删除从 开始的行"python.linting.pylintArgs":即可解决问题。