VSCode中Pylint启用及代码报错不显示问题求助

Let's break down what's happening and how to resolve this issue, based on the details you shared:

What's the Core Problem? #

You have Pylint installed both globally and in your virtual environment, and running it directly in the terminal catches plenty of errors—but snap versions of VSCode (1.45.1/1.46.1) aren't displaying those errors in the editor. Even after adding a .pylintrc, only the Jedi language server works, while the Microsoft server still fails to enable linting.

The key clue is the Pylint command VSCode executes: it explicitly disables all rules first, then only enables a narrow set of specific error codes (that long list of --enable=F,E0001,... flags). That's why running pylint micro.py directly gives a -2.50/10 score, but VSCode's command returns a perfect 10—VSCode isn't checking for most of the issues Pylint finds by default.

Step-by-Step Solutions #

1. Override VSCode's Restrictive Default Pylint Rules #

VSCode's built-in Pylint config is too limited. Fix this by updating your .vscode/settings.json to use either your custom .pylintrc or Pylint's full default rules:

Option A: Use Your Custom .pylintrc

Ensure the path is correct, and tell VSCode to ignore its default enable/disable flags so your config takes full effect:

{
  "python.linting.pylintEnabled": true,
  "python.linting.enabled": true,
  "python.linting.pylintArgs": [
    "--rcfile", "${workspaceFolder}/backend/.pylintrc",
    "--disable=" // Clear VSCode's default disable-all setting
  ]
}

Option B: Use Pylint's Default Rules

If you don't need a custom config, just clear the pylintArgs to let Pylint use its full default checks:

{
  "python.linting.pylintEnabled": true,
  "python.linting.enabled": true,
  "python.linting.pylintArgs": []
}

2. Fix Snap VSCode File Permissions #

Snap-installed apps have restricted file system access, which might be preventing VSCode from reading your venv or .pylintrc properly:

• Grant VSCode full access to storage directories:

  sudo snap connect code:removable-media
  

• Move your project to a standard user directory like ~/Documents if it's stored in a restricted path (e.g., encrypted folders or system directories).

3. Troubleshoot the Microsoft Language Server #

If the Microsoft server still won't run Pylint:

• Turn off Fast Parse Mode (it disables some static checks):

  {
    "python.analysis.fastParseEnabled": false
  }
  

• Restart the language server: Press Ctrl+Shift+P, select Python: Restart Language Server, then reload your project.
• Update dependencies: Make sure your venv's Pylint and VSCode's Python extension are up to date:

  .venv/bin/pip install --upgrade pylint
  

  Then go to the VSCode Extensions tab and update the "Python" extension by Microsoft.

Why the Command Line vs VSCode Discrepancy? #

VSCode's Python extension uses a stripped-down Pylint config by default to prioritize performance. It disables all rules with --disable=all, then only re-enables a small subset of critical errors. This means most of Pylint's default checks won't show up in the editor unless you override this config.

内容的提问来源于stack exchange，提问作者atlau