chore: Support for Werkzeug>=2.1.0

docs/changelog.rst

@@ -4,6 +4,10 @@ Changelog
 `Unreleased`_ - TBD
 -------------------
 
+**Added**
+
+- Support for Werkzeug>=2.1.0. `#1410`_
+
 `2.8.5`_ - 2020-12-15
 ---------------------
 
@@ -1580,6 +1584,7 @@ Deprecated
 .. _0.3.0: https://github.com/schemathesis/schemathesis/compare/v0.2.0...v0.3.0
 .. _0.2.0: https://github.com/schemathesis/schemathesis/compare/v0.1.0...v0.2.0
 
+.. _#1410: https://github.com/schemathesis/schemathesis/issues/1410
 .. _#917: https://github.com/schemathesis/schemathesis/issues/917
 .. _#897: https://github.com/schemathesis/schemathesis/issues/897
 .. _#895: https://github.com/schemathesis/schemathesis/issues/895

src/schemathesis/_compat.py

@@ -1,5 +1,15 @@
 # pylint: disable=unused-import
+import werkzeug
+from packaging import version
+
 try:
     from importlib import metadata
 except ImportError:
     import importlib_metadata as metadata  # type: ignore
+
+if version.parse(werkzeug.__version__) < version.parse("2.1.0"):
+    from werkzeug.wrappers.json import JSONMixin
+else:
+
+    class JSONMixin:  # type: ignore
+        pass

src/schemathesis/utils.py

@@ -14,8 +14,8 @@
 from requests.exceptions import InvalidHeader  # type: ignore
 from requests.utils import check_header_validity  # type: ignore
 from werkzeug.wrappers import Response as BaseResponse
-from werkzeug.wrappers.json import JSONMixin
 
+from ._compat import JSONMixin
 from .types import Filter, NotSet, RawAuth
 
 try: