style: make black happy :(

Signed-off-by: Zxilly <zhouxinyu1001@gmail.com>

Author: Zxilly

casbin_sqlalchemy_adapter/adapter.py

@@ -46,7 +46,7 @@ class Filter:
 class Adapter(persist.Adapter, persist.adapters.UpdateAdapter):
     """the interface for Casbin adapters."""
 
-    def __init__(self, engine, db_class= None, filtered=False):
+    def __init__(self, engine, db_class=None, filtered=False):
         if isinstance(engine, str):
             self._engine = create_engine(engine)
         else:
@@ -55,9 +55,9 @@ def __init__(self, engine, db_class= None, filtered=False):
         if db_class is None:
             db_class = CasbinRule
         else:
-            for attr in ('ptype', 'v0', 'v1', 'v2', 'v3', 'v4', 'v5'):
+            for attr in ("ptype", "v0", "v1", "v2", "v3", "v4", "v5"):
                 if not hasattr(db_class, attr):
-                    raise Exception(f'{attr} not found in custom DatabaseClass.')
+                    raise Exception(f"{attr} not found in custom DatabaseClass.")
             Base.metadata = db_class.metadata
 
         self._db_class = db_class
@@ -191,7 +191,7 @@ def remove_filtered_policy(self, sec, ptype, field_index, *field_values):
         return True if r > 0 else False
 
     def update_policy(
-            self, sec: str, ptype: str, old_rule: [str], new_rule: [str]
+        self, sec: str, ptype: str, old_rule: [str], new_rule: [str]
     ) -> None:
         """
         Update the old_rule with the new_rule in the database (storage).
@@ -224,15 +224,15 @@ def update_policy(
                     exec(f"old_rule_line.v{index} = None")
 
     def update_policies(
-            self,
-            sec: str,
-            ptype: str,
-            old_rules: [
-                [str],
-            ],
-            new_rules: [
-                [str],
-            ],
+        self,
+        sec: str,
+        ptype: str,
+        old_rules: [
+            [str],
+        ],
+        new_rules: [
+            [str],
+        ],
     ) -> None:
         """
         Update the old_rules with the new_rules in the database (storage).