/ or * should not be allowed after *args in function signature

[Azureblade3808]

Environment data

• Language Server version: 2021.5.3 / 2021.5.4-pre.1
• OS and version: Windows 7
• Python version (& distribution if applicable, e.g. Anaconda): 3.8.8 Anaconda

Sample

def f(*args, /, x, *, y):
    ...

Expected behavior

Both / and * get marked as error.

Actual behavior

No errors/warnings.

[erictraut]

Thanks for the feature request. I've added additional checks and corresponding error messages for these cases.

This will be in the next release.

[Azureblade3808]

Wow, your speed surprised me.

[jakebailey]

This issue has been fixed in version 2021.5.4, which we've just released. You can find the changelog here: https://github.com/microsoft/pylance-release/blob/main/CHANGELOG.md#202154-26-may-2021