为什么 pylint 的错误波浪线没有显示在 python visual studio 代码中？
why are pylint's error squiggle lines not showing in python visual studio code?
我在 Ubuntu 中将 vscode 用于 python3。 Error-squiggle-lines 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。
- 然后我在从
.config/code 中删除其配置后重新安装了 vs 代码，但这也没有用。
- 还从命令面板将 python linting 设置为 true
它没有显示错误波浪线：
这里是微软的 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：真
python.linting.pylintPath 是：pylint
visual studio开发者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
output 面板中 python 的输出：
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
如何让波浪线再次生效？
确保在您的设置中没有关闭 linting（特别是 Pylint，如果您想使用的话）。还要确保你安装了 Pylint 并且 Python 扩展知道它在哪里（通过创建环境并安装到那里或全局安装它并设置 "python.linting.pylintPath"）。否则，请检查输出面板中 "Python" 通道的输出，以了解 Pylint 的执行方式，并确保在将其复制并粘贴到适当的终端时能够正常工作。
在您的 settings.json 文件中（在命令面板中搜索 settings.json），声明以下内容：
"python.linting.pylintEnabled": true, "python.jediEnabled": false
如果您只想在工作区中进行更改，请更改 .vscode 文件夹中的 settings.json 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哪些设置。 Flake8 不受此影响。 Pylint 和 Microsoft Python 语言服务器似乎因此无法正常工作。
side note:got 这个解决方案来自 sys-temd 在 github.com/microsoft/vscode-python/issues
上的回复
pip install -U pylint
解决了我的问题
如果主要问题是那些波浪线或工作区中的一些小错误，那么您可以下载 'pylance extension' 并在 'python language server' 的设置中启用它。这个语言服务器甚至更好（我认为），因为它比 'jedi' 语言服务器更轻，并且还告诉未使用的模块和变量，甚至是那些波浪线显示的未定义变量。
我试过但没有用的方法
pip install -U pylint- 声明
"python.linting.pylintEnabled": true, "python.jediEnabled": false
然后我尝试重新创建一个全新的 settings.json，pylint 原来可以工作。
因此，我跟踪哪一行影响了pylint。
在我的例子中，它是从 "python.linting.pylintArgs":
开始的行
解决方案
删除从 "python.linting.pylintArgs": 开始的行将解决问题。
我在 Ubuntu 中将 vscode 用于 python3。 Error-squiggle-lines 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。
- 然后我在从
.config/code中删除其配置后重新安装了 vs 代码，但这也没有用。 - 还从命令面板将 python linting 设置为 true
它没有显示错误波浪线：
这里是微软的 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：真
python.linting.pylintPath 是：pylint
visual studio开发者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
output 面板中 python 的输出：
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
如何让波浪线再次生效？
确保在您的设置中没有关闭 linting（特别是 Pylint，如果您想使用的话）。还要确保你安装了 Pylint 并且 Python 扩展知道它在哪里（通过创建环境并安装到那里或全局安装它并设置 "python.linting.pylintPath"）。否则，请检查输出面板中 "Python" 通道的输出，以了解 Pylint 的执行方式，并确保在将其复制并粘贴到适当的终端时能够正常工作。
在您的 settings.json 文件中（在命令面板中搜索 settings.json），声明以下内容：
"python.linting.pylintEnabled": true, "python.jediEnabled": false
如果您只想在工作区中进行更改，请更改 .vscode 文件夹中的 settings.json 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哪些设置。 Flake8 不受此影响。 Pylint 和 Microsoft Python 语言服务器似乎因此无法正常工作。
side note:got 这个解决方案来自 sys-temd 在 github.com/microsoft/vscode-python/issues
上的回复pip install -U pylint
解决了我的问题
如果主要问题是那些波浪线或工作区中的一些小错误，那么您可以下载 'pylance extension' 并在 'python language server' 的设置中启用它。这个语言服务器甚至更好（我认为），因为它比 'jedi' 语言服务器更轻，并且还告诉未使用的模块和变量，甚至是那些波浪线显示的未定义变量。
我试过但没有用的方法
pip install -U pylint- 声明
"python.linting.pylintEnabled": true, "python.jediEnabled": false
然后我尝试重新创建一个全新的 settings.json，pylint 原来可以工作。
因此，我跟踪哪一行影响了pylint。
在我的例子中，它是从 "python.linting.pylintArgs":
解决方案
删除从 "python.linting.pylintArgs": 开始的行将解决问题。