当我执行Flask运行时,它显示错误:ModuleNotFoundError:没有名为“ werkzeug.contrib”的模块。谁能帮我这个?


问题内容

我得到的确切错误是:

flask.cli.NoAppException: While importing "application", an ImportError was raised:Traceback      (most recent call last):
File "/home/harshit/.local/lib/python3.6/site-packages/flask/cli.py", line 240, in     locate_app
__import__(module_name)
File "/home/harshit/Documents/project1/application.py", line 18, in <module>
Session(app)
File "/home/harshit/.local/lib/python3.6/site-packages/flask_session/__init__.py", line 54,    in __init__
self.init_app(app)
File "/home/harshit/.local/lib/python3.6/site-packages/flask_session/__init__.py", line 61, in init_app
app.session_interface = self._get_interface(app)
File "/home/harshit/.local/lib/python3.6/site-packages/flask_session/__init__.py", line 93, in _get_interface
config['SESSION_USE_SIGNER'], config['SESSION_PERMANENT'])
File "/home/harshit/.local/lib/python3.6/site-packages/flask_session/sessions.py", line 313, in __init__
from werkzeug.contrib.cache import FileSystemCache
ModuleNotFoundError: No module named 'werkzeug.contrib'

我正在尝试从Flask导入会话


问题答案:

Werkzeug
1.0.0已删除不推荐使用的代码,包括所有werkzeug.contrib。您应该为新项目使用替代库。werkzeug.contrib.session被提取到secure-
cookie


如果您正在使用的现有项目需要从中获取某些信息contrib,则需要降级到Werkzeug <1:

pip3 install Werkzeug<1