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VS Code version

1.62.3

Extension version

v2021.11.1422169775

OS type

macOS

OS version

11.6

Python distribution

Other

Python version

pyenv (installed with brew) in virtual environment (3.8.10)

Language server

Default

Expected behaviour

I would expect syntax highlighting to be the same irrespective of whether the line is broken before or after the @ operator.

Actual behaviour

Steps to reproduce

Enter the following code into a new python file.

# Define variables so pylance doesn't complain.
long_variable_name = other_long_variable_name = 1

long_variable_name \
    @ other_long_variable_name['some_index']

long_variable_name @ \
    other_long_variable_name['some_index']

Logs

No response

Code of Conduct

• [X] I agree to follow this project's Code of Conduct

This is a bug in the TextMate grammar included in the Python extension, not in Pylance. I suspect it's related to the fact that the @ operator is used for decorators, and decorators prior to Python 3.9 could not contain index expressions. In any case, this bug should probably be transferred to the Python extension repo.

Yes, agreed, @erictraut. Are you able to transfer back to microsoft/vscode-python, @karthiknadig?

TextMate grammar is in the VS Code repo not in the python extension. We should move this there.

Aha, my bad. Thanks for clarifying.

Copied to the upstream repo that we pull the python grammar from: https://github.com/MagicStack/MagicPython/issues/253