used-before-assignment false positive with walrus operator

[DetachHead]

Bug description

used-before-assignment false positive occurs on the following code:

def foo() -> str:
    return bar if (bar := "") else ""

Configuration

No response

Command used

pylint foo.py

Pylint output

E0601: Using variable 'bar' before assignment (used-before-assignment)

Expected behavior

no error

Pylint version

pylint 2.9.6
astroid 2.6.6
Python 3.10.0b4 (v3.10.0b4:2ba4b20854, Jul  9 2021, 21:56:21) [Clang 12.0.5 (clang-1205.0.22.9)]

OS / Environment

No response

Additional dependencies

No response

[Pierre-Sassoulas]

Thank you for opening the issue I can reproduce this.

[0xallie]

I'm still seeing this in pylint 2.15.0:

"source": track.source if (track := first_or_none(self.tracks)) else "",

used-before-assignment: Using variable 'track' before assignment

[Pierre-Sassoulas]

@nyuszika7h could you open another issue, please ? It look like it's affecting another node than a return in your case.