diff --git a/crates/ruff/resources/test/fixtures/pycodestyle/E731.py b/crates/ruff/resources/test/fixtures/pycodestyle/E731.py
index 2cb4c7ea3a..7c01e74a03 100644
--- a/crates/ruff/resources/test/fixtures/pycodestyle/E731.py
+++ b/crates/ruff/resources/test/fixtures/pycodestyle/E731.py
@@ -138,3 +138,12 @@ def scope():
 class TemperatureScales(Enum):
     CELSIUS = (lambda deg_c: deg_c)
     FAHRENHEIT = (lambda deg_c: deg_c * 9 / 5 + 32)
+
+
+# Regression test for: https://github.com/astral-sh/ruff/issues/7141
+def scope():
+    # E731
+
+    f = lambda: (
+        i := 1,
+    )
diff --git a/crates/ruff/src/rules/pycodestyle/snapshots/ruff__rules__pycodestyle__tests__E731_E731.py.snap b/crates/ruff/src/rules/pycodestyle/snapshots/ruff__rules__pycodestyle__tests__E731_E731.py.snap
index 39603bd0c2..976423061a 100644
--- a/crates/ruff/src/rules/pycodestyle/snapshots/ruff__rules__pycodestyle__tests__E731_E731.py.snap
+++ b/crates/ruff/src/rules/pycodestyle/snapshots/ruff__rules__pycodestyle__tests__E731_E731.py.snap
@@ -339,6 +339,8 @@ E731.py:139:5: E731 [*] Do not assign a `lambda` expression, use a `def`
     139 |+    def CELSIUS(deg_c):
     140 |+        return deg_c
 140 141 |     FAHRENHEIT = (lambda deg_c: deg_c * 9 / 5 + 32)
+141 142 | 
+142 143 | 
 
 E731.py:140:5: E731 [*] Do not assign a `lambda` expression, use a `def`
     |
@@ -356,5 +358,30 @@ E731.py:140:5: E731 [*] Do not assign a `lambda` expression, use a `def`
 140     |-    FAHRENHEIT = (lambda deg_c: deg_c * 9 / 5 + 32)
     140 |+    def FAHRENHEIT(deg_c):
     141 |+        return deg_c * 9 / 5 + 32
+141 142 | 
+142 143 | 
+143 144 | # Regression test for: https://github.com/astral-sh/ruff/issues/7141
+
+E731.py:147:5: E731 [*] Do not assign a `lambda` expression, use a `def`
+    |
+145 |       # E731
+146 |   
+147 |       f = lambda: (
+    |  _____^
+148 | |         i := 1,
+149 | |     )
+    | |_____^ E731
+    |
+    = help: Rewrite `f` as a `def`
+
+ℹ Suggested fix
+144 144 | def scope():
+145 145 |     # E731
+146 146 | 
+147     |-    f = lambda: (
+148     |-        i := 1,
+149     |-    )
+    147 |+    def f():
+    148 |+        return (i := 1),
 
 
diff --git a/crates/ruff_python_codegen/src/generator.rs b/crates/ruff_python_codegen/src/generator.rs
index ff9d4b4b21..e741c89326 100644
--- a/crates/ruff_python_codegen/src/generator.rs
+++ b/crates/ruff_python_codegen/src/generator.rs
@@ -14,6 +14,7 @@ use ruff_source_file::LineEnding;
 use super::stylist::{Indentation, Quote, Stylist};
 
 mod precedence {
+    pub(crate) const NAMED_EXPR: u8 = 1;
     pub(crate) const ASSIGN: u8 = 3;
     pub(crate) const ANN_ASSIGN: u8 = 5;
     pub(crate) const AUG_ASSIGN: u8 = 5;
@@ -30,7 +31,6 @@ mod precedence {
     pub(crate) const TUPLE: u8 = 19;
     pub(crate) const FORMATTED_VALUE: u8 = 19;
     pub(crate) const COMMA: u8 = 21;
-    pub(crate) const NAMED_EXPR: u8 = 23;
     pub(crate) const ASSERT: u8 = 23;
     pub(crate) const COMPREHENSION_ELEMENT: u8 = 27;
     pub(crate) const LAMBDA: u8 = 27;
@@ -1639,6 +1639,13 @@ class Foo:
             "class SchemaItem(NamedTuple):
     fields: ((\"property_key\", str),)"
         );
+        assert_round_trip!(
+            "def func():
+    return (i := 1)"
+        );
+        assert_round_trip!("yield (i := 1)");
+        assert_round_trip!("x = (i := 1)");
+        assert_round_trip!("x += (i := 1)");
 
         // Type aliases
         assert_round_trip!(r#"type Foo = int | str"#);