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Improve support for sys.platform and sys.version_info checks

Status: Open.

#2429Â?In facebook/pyrefly;

· samwgoldman opened on Feb 15, 2026

Stack overflow crash with scipy.stats

Status: Open.

#2426Â?In facebook/pyrefly;

· bobybi930 opened on Feb 14, 2026

warning for unused things

Status: Open.

#2422Â?In facebook/pyrefly;

· asukaminato0721 opened on Feb 14, 2026

"is not assignable to upper bound" when using Protocol

Status: Open.

#2421Â?In facebook/pyrefly;

· MarcoGorelli opened on Feb 14, 2026

Cannot instantiate <code>Foo</code> because it is a protocol [bad-instantiation]

Status: Open.

#2420Â?In facebook/pyrefly;

· MarcoGorelli opened on Feb 14, 2026

Operator &lt; fails on identical constrained TypeVar operands

Status: Open.

#2419Â?In facebook/pyrefly;

· QEDady opened on Feb 14, 2026

collections.namedtuple doesn't work well with generators

typechecking

Status: Open.

Task

#2418Â?In facebook/pyrefly;

· QEDady opened on Feb 14, 2026

Conformance: Module with unannotated attributes rejected as protocol implementation

Status: Open.

#2414Â?In facebook/pyrefly;

· migeed-z opened on Feb 14, 2026

Fallback trick with ImportError and type ignore[assignment] lead to resolve the type as object

needs-discussionAn issue where it's not clear whether there is a bug or we are behaving as expected.An issue where it's not clear whether there is a bug or we are behaving as expected.

Status: Open.

#2410Â?In facebook/pyrefly;

· michailzhuk opened on Feb 13, 2026

Erroneous <code>unbound-name</code> when using <code>NoReturn</code>

scoping-control-flowissues related to scoping and control flowissues related to scoping and control flow

Status: Open.

Bug

#2406Â?In facebook/pyrefly;

· MarcoGorelli opened on Feb 13, 2026

Problem with antigravity IDE

questionFurther information is requestedFurther information is requested

Status: Open.

Bug

#2404Â?In facebook/pyrefly;

· piero2809 opened on Feb 13, 2026

pyrefly has issue running in Codex worktrees

configuration

Status: Open.

Bug

#2402Â?In facebook/pyrefly;

· gmetzker-4c opened on Feb 13, 2026