Clean up based on Ruff

pyproject.toml

@@ -36,4 +36,8 @@ minversion = "6.0"
 # addopts = "-ra -q"
 testpaths = [
     "tests",
-]
+]
+
+[tool.ruff]
+line-length = 120
+target-version = "py311"

runtype/__init__.py

@@ -1,10 +1,17 @@
 from .dataclass import dataclass
 from .dispatch import DispatchError, MultiDispatch
-from .validation import PythonTyping, TypeSystem, TypeMismatchError, assert_isa, isa, issubclass, validate_func, is_subtype, cv_type_checking
+from .validation import (PythonTyping, TypeSystem, TypeMismatchError,
+                         assert_isa, isa, issubclass, validate_func, is_subtype, cv_type_checking)
 from .pytypes import Constraint, String, Int
 
 __version__ = "0.3.1"
-
+__all__ = (
+    dataclass,
+    DispatchError, MultiDispatch,
+    PythonTyping, TypeSystem, TypeMismatchError,
+    assert_isa, isa, issubclass, validate_func, is_subtype, cv_type_checking,
+    Constraint, String, Int
+)
 
 def Dispatch(typesystem: TypeSystem = PythonTyping()):
     """Creates a decorator attached to a dispatch group,

runtype/dataclass.py

@@ -12,7 +12,7 @@
 from .utils import ForwardRef
 from .common import CHECK_TYPES
 from .validation import TypeMismatchError, ensure_isa as default_ensure_isa
-from .pytypes import TypeCaster, type_caster, SumType, NoneType
+from .pytypes import TypeCaster, SumType, NoneType
 
 Required = object()
 MAX_SAMPLE_SIZE = 16
@@ -338,7 +338,8 @@ def __dataclass_transform__(
 @__dataclass_transform__(eq_default=True, order_default=True)
 def dataclass(cls=None, *, check_types: Union[bool, str] = CHECK_TYPES,
                            config: Configuration = PythonConfiguration(),
-                           init=True, repr=True, eq=True, order=False, unsafe_hash=False, frozen=True, slots=False) -> Any:
+                           init=True, repr=True, eq=True, order=False,
+                           unsafe_hash=False, frozen=True, slots=False) -> Any:
     """Runtype's dataclass is a drop-in replacement to Python's built-in dataclass, with added functionality.
 
     **Differences from builtin dataclass:**
@@ -352,7 +353,8 @@ def dataclass(cls=None, *, check_types: Union[bool, str] = CHECK_TYPES,
       - Adds convenience methods: replace(), aslist(), astuple(), and iterator for dict(this).
         These methods won't override existing ones. They will be added only if the names aren't used.
       - Setting the default as ``None`` automatically makes the type into ``Optional``, if it isn't already.
-      - Members without a default are allowed after members with a default (but they are required to create the instance)
+      - Members without a default are allowed after members with a default
+        (but they are required in order to create the instance)
 
     3. Misc
       - Frozen by default
@@ -387,7 +389,8 @@ def dataclass(cls=None, *, check_types: Union[bool, str] = CHECK_TYPES,
     context_frame = inspect.currentframe().f_back   # Get parent frame, to resolve forward-references
     def wrap(cls):
         return _process_class(cls, config, check_types, context_frame,
-                              init=init, repr=repr, eq=eq, order=order, unsafe_hash=unsafe_hash, frozen=frozen, slots=slots)
+                              init=init, repr=repr, eq=eq, order=order,
+                              unsafe_hash=unsafe_hash, frozen=frozen, slots=slots)
 
     # See if we're being called as @dataclass or @dataclass().
     if cls is None:

runtype/dispatch.py

@@ -64,7 +64,8 @@ def get_arg_types(self, args):
     def find_function(self, args):
         nodes = [self.root]
         for i, a in enumerate(args):
-            nodes = [n for node in nodes for n in node.follow_arg(a, self.typesystem, test_subtype=i in self.test_subtypes)]
+            nodes = [n for node in nodes
+                       for n in node.follow_arg(a, self.typesystem, test_subtype=i in self.test_subtypes)]
 
         funcs = [node.func for node in nodes if node.func]
 

runtype/mypy.py

@@ -9,7 +9,7 @@
 
 from typing import Callable, Optional, Type
 
-from mypy.plugin import ClassDefContext, MethodContext, Plugin
+from mypy.plugin import ClassDefContext, Plugin
 from mypy.plugins import dataclasses
 
 DATACLASS_PATHS = {"runtype.dataclass.dataclass"}

runtype/pytypes.py

@@ -22,8 +22,8 @@
     else:
         _orig_eval = ForwardRef._evaluate
 
-    def _forwardref_evaluate(self, g, l, _):
-        return _orig_eval(self, g, l)
+    def _forwardref_evaluate(self, glob, loc, _):
+        return _orig_eval(self, glob, loc)
 else:
     _forwardref_evaluate = ForwardRef._evaluate
 
@@ -189,7 +189,7 @@ def __le__(self, other):
             try:
                 for v in self.values:
                     other.validate_instance(v)
-            except TypeMismatchError as e:
+            except TypeMismatchError:
                 return False
             return True
         return NotImplemented

runtype/typesystem.py

@@ -1,16 +1,16 @@
 
 
 class TypeSystem:
-    def isinstance(self, obj, t):
+    def isinstance(self, obj, t: type) -> bool:
         return self.issubclass(self.get_type(obj), t)
 
-    def issubclass(self, t1, t2):
+    def issubclass(self, t1: type, t2: type) -> bool:
         raise NotImplementedError()
 
-    def canonize_type(self, t):
+    def canonize_type(self, t: type) -> type:
         return t
 
-    def get_type(self, obj):
+    def get_type(self, obj) -> type:
         raise NotImplementedError()
 
     default_type: type = NotImplemented

runtype/utils.py

@@ -7,7 +7,7 @@
     # python 3.6 
     from typing import _ForwardRef as ForwardRef
 else:
-    from typing import ForwardRef
+    from typing import ForwardRef as ForwardRef
 
 def get_func_signatures(typesystem, f):
     sig = inspect.signature(f)

runtype/validation.py

@@ -1,6 +1,6 @@
 "User-facing API for validation"
 
-from typing import Any, Dict, List, Tuple, Set, FrozenSet, Callable
+from typing import Any, Dict, List, Tuple, Set, FrozenSet
 from functools import wraps
 
 from .common import CHECK_TYPES
@@ -38,7 +38,7 @@ def isa(obj, t):
     try:
         ensure_isa(obj, t)
         return True
-    except TypeMismatchError as e:
+    except TypeMismatchError:
         return False