[python] syntax highlighting breaks on function annotations

From @doug-numetric on July 3, 2018 23:7

• VSCode Version: 1.24.1
• OS Version: macOS 10.13.5

Steps to Reproduce:

1. Create a new file: test.py
2. Paste in the following text:

def test() -> None:
    # Broken comment highlighting
    if True:
        print('The if statement above isn't highlighting either.  Same goes for this string')

Does this issue occur when all extensions are disabled?: Yes

Appears to be a regression of: https://github.com/Microsoft/vscode/issues/1467

Copied from original issue: Microsoft/vscode#53509

[doug-numetric]

@1st1 Sorry for the noise and thanks for the direction. I tried disabling python related extensions one by one to find what may have exposed the issue. It appears to have been caused by the Python for VSCode 0.2.3 extension. Highlighting worked correctly after I uninstalled that.

I find it strange that I still had the issue when I launched vscode with extensions disabled – but that’s another issue.

[doug-numetric]

Yep. I referenced the parent Microsoft/vscode issue from a related issue in that extension’s repo: https://github.com/tht13/Python-vscode/issues/21