我在 Azure 上部署了一個 Flask 應用程式。在不更改任何依賴項的情況下，我突然收到此錯誤，ImportError: cannot import name 'contextfunction' from 'jinja2'。似乎與 Flask-admin 有關：
[2022-03-27 07:22:27 0000] [7] [INFO] Starting gunicorn 20.1.0
[2022-03-27 07:22:27 0000] [7] [INFO] Using worker: geventwebsocket.gunicorn.workers.GeventWebSocketWorker
File "/usr/local/lib/python3.10/site-packages/gunicorn/arbiter.py", line 589, in spawn_worker
[2022-03-27 07:22:03 0000] [7] [INFO] Shutting down: Master
File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
from .base import expose, expose_plugview, Admin, BaseView, AdminIndexView # noqa: F401
File "/usr/local/lib/python3.10/site-packages/flask_admin/helpers.py", line 2, in <module>
File "/app/eccho.py", line 4, in <module>
File "/usr/local/lib/python3.10/site-packages/gunicorn/app/base.py", line 67, in wsgi
File "/usr/local/lib/python3.10/site-packages/gunicorn/util.py", line 359, in import_app
[2022-03-27 07:21:47 0000] [7] [INFO] Shutting down: Master
return self.load_wsgiapp()
File "/app/app/__init__.py", line 9, in <module>
File "/usr/local/lib/python3.10/site-packages/gunicorn/workers/ggevent.py", line 146, in init_process
[2022-03-27 07:22:03 0000] [7] [INFO] Starting gunicorn 20.1.0
from flask_admin import babel
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "/app/eccho.py", line 4, in <module>
[2022-03-27 07:22:03 0000] [7] [INFO] Reason: Worker failed to boot.
from .helpers import get_current_view
File "<frozen importlib._bootstrap_external>", line 883, in exec_module
from .base import expose, expose_plugview, Admin, BaseView, AdminIndexView # noqa: F401
File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 883, in exec_module
return util.import_app(self.app_uri)
File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
ImportError: cannot import name 'contextfunction' from 'jinja2' (/usr/local/lib/python3.10/site-packages/jinja2/__init__.py)
File "/usr/local/lib/python3.10/site-packages/gunicorn/util.py", line 359, in import_app
File "/usr/local/lib/python3.10/site-packages/flask_admin/__init__.py", line 6, in <module>
任何人都可以幫忙嗎？
謝謝
uj5u.com熱心網友回復：
在 Jinja2 3.0.0 中 contextfunction 被 pass_context 取代，所以這絕對是一個依賴問題。你可以降級 Jinja 版本還是應該為這個應用程式運行 python 2？
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