TypeError: __init__() 得到了一个意外的关键字参数 'unbound_message'

Question

I got the above error when I try to import fields from flask_restx .

from flask_restx import fields

What is the problem. It works on my local machine but not on remote machine.

Full error trace:

  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/clearml/binding/import_bind.py", line 54, in __patched_import3
    mod = builtins.__org_import__(
  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/flask_restx/__init__.py", line 4, in <module>
    from . import fields, reqparse, apidoc, inputs, cors
  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/clearml/binding/import_bind.py", line 54, in __patched_import3
    mod = builtins.__org_import__(
  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/flask_restx/fields.py", line 16, in <module>
    from flask import url_for, request
  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/clearml/binding/import_bind.py", line 54, in __patched_import3
    mod = builtins.__org_import__(
  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/flask/__init__.py", line 4, in <module>
    from . import json as json
  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/clearml/binding/import_bind.py", line 54, in __patched_import3
    mod = builtins.__org_import__(
  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/flask/json/__init__.py", line 8, in <module>
    from ..globals import current_app
  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/clearml/binding/import_bind.py", line 54, in __patched_import3
    mod = builtins.__org_import__(
  File "/root/.clearml/venvs-builds/3.8/lib/python3.8/site-packages/flask/globals.py", line 56, in <module>
    app_ctx: "AppContext" = LocalProxy(  # type: ignore[assignment]
TypeError: __init__() got an unexpected keyword argument 'unbound_message'

Answer 1

I added flask==2.1.3 to my requirements and it worked. I think this is a problem with the currently lastest versions of flask/

Answer 2

I had an older version of Werkzeug in my requirements.txt that needed removing

Answer 3

Add latest version of flask from requirements.txt Here you can know the latest current version

https://pypi.org/project/Flask/

Flask==2.2.2 This is current version make sure from the link above.

Answer 4

pip install Flask==2.1.3

The following blog has all the fixes in detail: https://bobbyhadz.com/blog/python-typeerror-init-got-an-unexpected-keyword-argument-unbound-message

Answer 5

Check if there are outdated versions of Flask/Werkzeug: pip list --outdated (replacing pip with pip3 as needed)

If Flask/Werkzeug are listed, consider upgrading them: pip install Flask Werkzeug --upgrade (with the caveat that doing so may break packages and/or dependencies in your project)

Information taken from here which was provided by an earlier response in this thread.