TypeError: cannot use a string pattern on a bytes-like object

[mmreza79]

I am having trouble storing flask session with werkzeug v.3.0.1. My production code was working fine till update the latest version. Now, I am encounter the following problem.

[ERROR] Error in ASGI Framework
Traceback (most recent call last):
  File ".../lib/python3.11/site-packages/hypercorn/asyncio/task_group.py", line 27, in _handle
    await app(scope, receive, send, sync_spawn, call_soon)
  File ".../lib/python3.11/site-packages/hypercorn/app_wrappers.py", line 33, in __call__
    await self.app(scope, receive, send)
  File ".../lib/python3.11/site-packages/quart/app.py", line 1621, in __call__
    await self.asgi_app(scope, receive, send)
  File ".../lib/python3.11/site-packages/quart/app.py", line 1647, in asgi_app
    await asgi_handler(receive, send)
  File ".../lib/python3.11/site-packages/quart/asgi.py", line 52, in __call__
    raise_task_exceptions(done)
  File ".../lib/python3.11/site-packages/quart/utils.py", line 187, in raise_task_exceptions
    raise task.exception()
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/asyncio/tasks.py", line 267, in __step
    result = coro.send(None)
             ^^^^^^^^^^^^^^^
  File ".../lib/python3.11/site-packages/quart/asgi.py", line 100, in handle_request
    response = await _handle_exception(self.app, error)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".../lib/python3.11/site-packages/quart/asgi.py", line 357, in _handle_exception
    raise error
  File ".../lib/python3.11/site-packages/quart/asgi.py", line 98, in handle_request
    response = await self.app.handle_request(request)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".../lib/python3.11/site-packages/quart/app.py", line 1363, in handle_request
    return await self.handle_exception(error)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".../lib/python3.11/site-packages/quart/app.py", line 1359, in handle_request
    return await self.full_dispatch_request(request_context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".../lib/python3.11/site-packages/quart_flask_patch/app.py", line 28, in new_full_dispatch_request
    return await old_full_dispatch_request(self, request_context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".../lib/python3.11/site-packages/quart/app.py", line 1398, in full_dispatch_request
    return await self.finalize_request(result, request_context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".../lib/python3.11/site-packages/quart/app.py", line 1522, in finalize_request
    response = await self.process_response(response, request_context)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ".../lib/python3.11/site-packages/quart/app.py", line 1583, in process_response
    await self.ensure_async(self.session_interface.save_session)(self, session_, response)
  File ".../lib/python3.11/site-packages/quart_flask_patch/app.py", line 43, in _wrapper
    result = func(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^
  File ".../lib/python3.11/site-packages/flask_session/sessions.py", line 362, in save_session
    response.set_cookie(app.config["SESSION_COOKIE_NAME"], session_id,
  File ".../lib/python3.11/site-packages/werkzeug/sansio/response.py", line 224, in set_cookie
    dump_cookie(
  File ".../lib/python3.11/site-packages/werkzeug/http.py", line 1303, in dump_cookie
    if not _cookie_no_quote_re.fullmatch(value):
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: cannot use a string pattern on a bytes-like object

Environment:

• Python version: 3.11
• Werkzeug version: 3.0.1
• Quart version: 0.19.3
• Flask-Session version: 0.5.0

Can anybody help me resolving the issue?

[pgjones]

This is an issue with Flask-Session, which needs an upgrade to be compatible with Werkzeug >= 3. Try rolling back to Quart 0.18 and Werkzeug < 3.