PyLance misunderstand return type as an object instead of a class

[hspadim-at-dunamis]

Environment data

• Language Server version: 2021.6.0
• OS and version: linux x64
• Python version (and distribution if applicable, e.g. Anaconda): Python 3.8.5 (default, Jan 27 2021, 15:41:15) [GCC 9.3.0] on linux
• python.analysis.indexing: undefined
• python.analysis.typeCheckingMode: off

Expected behaviour

from typing import NewType, Literal
from pydantic import constr

ExchangeName = NewType(
    "ExchangeName", constr(strip_whitespace=True, min_length=0, max_length=50)
)

Actual behaviour

from typing import NewType, Literal
from pydantic import constr

# Throw error
# Expected class as second argument to NewType Pylance
ExchangeName = NewType(
    "ExchangeName", constr(strip_whitespace=True, min_length=0, max_length=50)
)

[erictraut]

Thanks for the bug report. This will be fixed in the next release.

[jakebailey]

This issue has been fixed in version 2021.6.1, which we've just released. You can find the changelog here: https://github.com/microsoft/pylance-release/blob/main/CHANGELOG.md#202161-9-june-2021