Fix lint and formatting

guppy/checker/expr_checker.py

@@ -331,8 +331,7 @@ def visit_PyExpr(self, node: PyExpr) -> tuple[ast.expr, GuppyType]:
         # CPython (see `get_py_scope()`).
         if sys.implementation.name != "cpython":
             raise GuppyError(
-                "Compile-time `py(...)` expressions are only supported in CPython",
-                node
+                "Compile-time `py(...)` expressions are only supported in CPython", node
             )
 
         try:

guppy/decorator.py

@@ -1,11 +1,9 @@
 import functools
-import inspect
 from collections.abc import Callable, Iterator, Sequence
 from dataclasses import dataclass
 from typing import Any, ClassVar, TypeVar
 
 from guppy.ast_util import AstNode, has_empty_body
-from guppy.checker.core import PyScope
 from guppy.custom import (
     CustomCallChecker,
     CustomCallCompiler,

guppy/module.py

@@ -267,7 +267,7 @@ def get_py_scope(f: PyFunc) -> PyScope:
     See https://docs.python.org/3/reference/datamodel.html#special-read-only-attributes
     """
     if sys.implementation.name != "cpython":
-        return dict()
+        return {}
 
     if inspect.ismethod(f):
         f = f.__func__