我有 Flask==1.0.2, Jinja2>=2.10.1 這是 dockerized，我得到以下錯誤

  File "/usr/local/lib/python3.7/site-packages/gunicorn/workers/base.py", line 146, in load_wsgi
    self.wsgi = self.app.wsgi()
  File "/usr/local/lib/python3.7/site-packages/gunicorn/app/base.py", line 67, in wsgi
    self.callable = self.load()
  File "/usr/local/lib/python3.7/site-packages/gunicorn/app/wsgiapp.py", line 58, in load
    return self.load_wsgiapp()
  File "/usr/local/lib/python3.7/site-packages/gunicorn/app/wsgiapp.py", line 48, in load_wsgiapp
    return util.import_app(self.app_uri)
  File "/usr/local/lib/python3.7/site-packages/gunicorn/util.py", line 359, in import_app
    mod = importlib.import_module(module)
  File "/usr/local/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 953, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/app/search_service/__init__.py", line 12, in <module>
    from flasgger import Swagger
  File "/usr/local/lib/python3.7/site-packages/flasgger/__init__.py", line 10, in <module>
    from .base import Swagger, Flasgger, NO_SANITIZER, BR_SANITIZER, MK_SANITIZER, LazyJSONEncoder  # noqa
  File "/usr/local/lib/python3.7/site-packages/flasgger/base.py", line 19, in <module>
    from flask import Blueprint
  File "/usr/local/lib/python3.7/site-packages/flask/__init__.py", line 19, in <module>
    from jinja2 import Markup, escape
ImportError: cannot import name 'Markup' from 'jinja2' (/usr/local/lib/python3.7/site-packages/jinja2/__init__.py)

要求.txt

attrs>=19.1.0
boto3==1.17.23
click==7.0
itsdangerous==2.0.1
flasgger==0.9.5
Flask==1.0.2
Flask-RESTful>=0.3.6
flask-cors==3.0.8
gunicorn==20.1.0
Jinja2>=2.10.1
jsonschema>=3.0.1,<4.0
marshmallow>=3.0,<=3.6
marshmallow3-annotations>=1.0.0
pytz==2021.1
requests>=2.25.0
requests-aws4auth==1.1.0
statsd==3.2.1
typing==3.6.4
werkzeug>=2.0.0
wheel==0.36.2
itsdangerous==2.0.1

Dockerfile

FROM python:3.7-slim
WORKDIR /app    
COPY ./search/ /app/
COPY requirements.txt /app/requirements.txt
RUN pip3 install --trusted-host pypi.org --trusted-host files.pythonhosted.org --default-timeout=100 -e .
RUN pip3 uninstall jinja2 --yes
RUN pip3 install --trusted-host pypi.org --trusted-host files.pythonhosted.org --default-timeout=100 --upgrade jinja2

昨天一直運行良好，從今天開始出現這個錯誤，Tried updating the jinja2但沒有解決問題，請幫我解決這個問題。

提前致謝！

uj5u.com熱心網友回復：

版本 3.0.1

關于檔案

修復了不帶引數呼叫已棄用的 jinja2.Markup。請改用 markupsafe.Markup。#1438

因此，要匯入標記，請使用以下代碼：

>>> from jinja2.utils import markupsafe 
>>> markupsafe.Markup()
Markup('')

uj5u.com熱心網友回復：

jinja的實際版本是 3.x嘗試更新 jinja：

1. 卸載 Jinja2==2.10.1

pip uninstall jinja2

2. 安裝最新版本的jinja2

pip install --upgrade jinja2

uj5u.com熱心網友回復：

由于匯入錯誤來自燒瓶File "/usr/local/lib/python3.7/site-packages/flask/__init__.py

我嘗試使用創建一個新的Flask應用程式Flask==1.0.2，發現錯誤來自這個版本的Flask，當它與Jinja2> = 2.10.1一起使用時。

但是當您洗掉Flask==1.0.2并安裝時Flask==2.0.3，一切正常。

pip uninstall  Flask Jinja2

pip install Flask Jinja2

依賴項

pip freeze

click==8.0.4
Flask==2.0.3
itsdangerous==2.1.2
Jinja2==3.1.1
MarkupSafe==2.1.1
Werkzeug==2.0.3

標籤：Python python-3.x 烧瓶 神社2

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