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Pyrefly won't rename symbols in current package if installed

Status: Open.

#2036 In facebook/pyrefly;

· psomhorst opened on Jan 8, 2026

tuple missing len info in comprehensions

Status: Open.

#2034 In facebook/pyrefly;

· asukaminato0721 opened on Jan 8, 2026

pyrefly should also give error for the type alias set multiple <code>ParamSpec</code>-based type parameters not just for the type alias set multiple <code>TypeVarTuple</code>-based type parameters

questionFurther information is requestedFurther information is requested

Status: Open.

#2032 In facebook/pyrefly;

· hyperkai opened on Jan 8, 2026

support for dataclasses_json decorator

Status: Open.

#2028 In facebook/pyrefly;

· PicoJr opened on Jan 7, 2026

False positive variable may be uninitialized error

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

typechecking

Status: Open.

Bug

#2027 In facebook/pyrefly;

· yangdanny97 opened on Jan 7, 2026

Recursive bounded generic wrongly reported as 'object'

Status: Open.

#2026 In facebook/pyrefly;

· carlo-nonato opened on Jan 7, 2026

Assigning a function to a <code>ClassVar</code> in a dataclass doesn't exclude it from <code>__init__</code>

typechecking

Status: Open.

Bug

#2025 In facebook/pyrefly;

· bluetech opened on Jan 7, 2026

Incorrect unreachable statement warning

help wantedLarger than "good first issue", but still well-defined and ready for someone to pick upLarger than "good first issue", but still well-defined and ready for someone to pick up

typechecking

Status: Open.

Bug

#2020 In facebook/pyrefly;

· ndmitchell opened on Jan 7, 2026

Support section-folding comments in Python (similar to R’s <code># ----</code> convention)

language-serverIssues specific to our IDE integration rather than type checkingIssues specific to our IDE integration rather than type checking

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.

#2019 In facebook/pyrefly;

· kv9898 opened on Jan 7, 2026

Crash in Antigravity

crash

questionFurther information is requestedFurther information is requested

userBugs reported by external users that should be prioritisedBugs reported by external users that should be prioritised

Status: Open.

#2018 In facebook/pyrefly;

· Lucyyang1991 opened on Jan 7, 2026

scipy-stubs regression after protocol performance fix

typechecking

Status: Open.

Bug

#2016 In facebook/pyrefly;

· rchen152 opened on Jan 7, 2026

Appending <code>None</code> to a list should not cause the type to be inferred as <code>list[None]</code>

typechecking

Status: Open.

Bug

#2014 In facebook/pyrefly;

· rchen152 opened on Jan 6, 2026