[pylint] Recode nan-comparison rule to W0177

crates/ruff_linter/src/codes.rs

@@ -297,7 +297,7 @@ pub fn code_to_rule(linter: Linter, code: &str) -> Option<(RuleGroup, Rule)> {
         #[allow(deprecated)]
         (Pylint, "R6301") => (RuleGroup::Nursery, rules::pylint::rules::NoSelfUse),
         (Pylint, "W0108") => (RuleGroup::Preview, rules::pylint::rules::UnnecessaryLambda),
-        (Pylint, "W0117") => (RuleGroup::Preview, rules::pylint::rules::NanComparison),
+        (Pylint, "W0177") => (RuleGroup::Preview, rules::pylint::rules::NanComparison),
         (Pylint, "W0120") => (RuleGroup::Stable, rules::pylint::rules::UselessElseOnLoop),
         (Pylint, "W0127") => (RuleGroup::Stable, rules::pylint::rules::SelfAssigningVariable),
         (Pylint, "W0128") => (RuleGroup::Preview, rules::pylint::rules::RedeclaredAssignedName),

crates/ruff_linter/src/rule_redirects.rs

@@ -109,5 +109,7 @@ static REDIRECTS: Lazy<HashMap<&'static str, &'static str>> = Lazy::new(|| {
         // Test redirect by prefix
         #[cfg(feature = "test-rules")]
         ("RUF96", "RUF95"),
+        // See: https://github.com/astral-sh/ruff/issues/10791
+        ("PLW0117", "PLW0177"),
     ])
 });

crates/ruff_linter/src/rules/pylint/rules/nan_comparison.rs

@@ -47,7 +47,7 @@ impl Violation for NanComparison {
     }
 }
 
-/// PLW0117
+/// PLW0177
 pub(crate) fn nan_comparison(checker: &mut Checker, left: &Expr, comparators: &[Expr]) {
     for expr in std::iter::once(left).chain(comparators.iter()) {
         if let Some(qualified_name) = checker.semantic().resolve_qualified_name(expr) {

crates/ruff_linter/src/rules/pylint/snapshots/ruff_linter__rules__pylint__tests__PLW0177_nan_comparison.py.snap

@@ -0,0 +1,82 @@
+---
+source: crates/ruff_linter/src/rules/pylint/mod.rs
+---
+nan_comparison.py:11:9: PLW0177 Comparing against a NaN value; use `math.isnan` instead
+   |
+10 | # PLW0117
+11 | if x == float("nan"):
+   |         ^^^^^^^^^^^^ PLW0177
+12 |     pass
+   |
+
+nan_comparison.py:15:9: PLW0177 Comparing against a NaN value; use `math.isnan` instead
+   |
+14 | # PLW0117
+15 | if x == float("NaN"):
+   |         ^^^^^^^^^^^^ PLW0177
+16 |     pass
+   |
+
+nan_comparison.py:19:9: PLW0177 Comparing against a NaN value; use `math.isnan` instead
+   |
+18 | # PLW0117
+19 | if x == float("NAN"):
+   |         ^^^^^^^^^^^^ PLW0177
+20 |     pass
+   |
+
+nan_comparison.py:23:9: PLW0177 Comparing against a NaN value; use `math.isnan` instead
+   |
+22 | # PLW0117
+23 | if x == float("Nan"):
+   |         ^^^^^^^^^^^^ PLW0177
+24 |     pass
+   |
+
+nan_comparison.py:27:9: PLW0177 Comparing against a NaN value; use `math.isnan` instead
+   |
+26 | # PLW0117
+27 | if x == math.nan:
+   |         ^^^^^^^^ PLW0177
+28 |     pass
+   |
+
+nan_comparison.py:31:9: PLW0177 Comparing against a NaN value; use `math.isnan` instead
+   |
+30 | # PLW0117
+31 | if x == bad_val:
+   |         ^^^^^^^ PLW0177
+32 |     pass
+   |
+
+nan_comparison.py:35:9: PLW0177 Comparing against a NaN value; use `np.isnan` instead
+   |
+34 | # PLW0117
+35 | if y == np.NaN:
+   |         ^^^^^^ PLW0177
+36 |     pass
+   |
+
+nan_comparison.py:39:9: PLW0177 Comparing against a NaN value; use `np.isnan` instead
+   |
+38 | # PLW0117
+39 | if y == np.NAN:
+   |         ^^^^^^ PLW0177
+40 |     pass
+   |
+
+nan_comparison.py:43:9: PLW0177 Comparing against a NaN value; use `np.isnan` instead
+   |
+42 | # PLW0117
+43 | if y == np.nan:
+   |         ^^^^^^ PLW0177
+44 |     pass
+   |
+
+nan_comparison.py:47:9: PLW0177 Comparing against a NaN value; use `np.isnan` instead
+   |
+46 | # PLW0117
+47 | if y == npy_nan:
+   |         ^^^^^^^ PLW0177
+48 |     pass
+   |