Revert "Merge pull request #25 from lyang/patch-1"

This reverts commit c8813cb, reversing
changes made to b36c12b.

Author: p1c2u

openapi_schema_validator/validators.py

@@ -1,4 +1,3 @@
-from attr import attrib, attrs
 from copy import deepcopy
 
 from jsonschema import _legacy_validators, _utils, _validators
@@ -57,11 +56,12 @@
 )
 
 
-@attrs
 class OAS30Validator(BaseOAS30Validator):
 
-    read: bool = attrib(default=None)
-    write: bool = attrib(default=None)
+    def __init__(self, *args, **kwargs):
+        self.read = kwargs.pop('read', None)
+        self.write = kwargs.pop('write', None)
+        super(OAS30Validator, self).__init__(*args, **kwargs)
 
     def iter_errors(self, instance, _schema=None):
         if _schema is None:
@@ -74,5 +74,4 @@ def iter_errors(self, instance, _schema=None):
                 'nullable': False,
             })
 
-        validator = self.evolve(schema=_schema)
-        return super(OAS30Validator, validator).iter_errors(instance)
+        return super(OAS30Validator, self).iter_errors(instance, _schema)

poetry.lock

@@ -33,11 +33,10 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = "^3.6.2"
-jsonschema = "^4.0.0"
+jsonschema = "*"
 rfc3339-validator = {version = "*", optional = true}
 strict-rfc3339 = {version = "*", optional = true}
 isodate = {version = "*", optional = true}
-attrs = ">=19.2.0"
 
 [tool.poetry.extras]
 rfc3339-validator = ["rfc3339-validator"]