[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

mypy/checker.py

@@ -8881,12 +8881,10 @@ def visit_assignment_stmt(self, s: AssignmentStmt) -> None:
         for lv in s.lvalues:
             lv.accept(self)
             if isinstance(lv, MemberExpr):
-                if lv.name == '__class__':
+                if lv.name == "__class__":
                     self.errors.report(
-                        lv.line,
-                        lv.column,
-                        "Assignment to '__class__' is unsafe and not allowed"
-                        )
+                        lv.line, lv.column, "Assignment to '__class__' is unsafe and not allowed"
+                    )
         self.lvalue = False
 
     def visit_name_expr(self, e: NameExpr) -> None:

test-data/unit/check-assign-to-class.test

@@ -20,4 +20,3 @@ class E:
     x = 1
     def baz(self):
         self.x = 2  # OK
-