deepcopy import fix

Author: p1c2u

openapi_schema_validator/validators.py

@@ -1,4 +1,5 @@
-import copy
+from copy import deepcopy
+
 from jsonschema import _legacy_validators, _utils, _validators
 from jsonschema.validators import create
 
@@ -65,7 +66,7 @@ def __init__(self, *args, **kwargs):
     def iter_errors(self, instance, _schema=None):
         if _schema is None:
             # creates a copy by value from schema to prevent mutation
-            _schema = copy.deepcopy(self.schema)
+            _schema = deepcopy(self.schema)
 
         # append defaults to trigger validator (i.e. nullable)
         if 'nullable' not in _schema: