Python3 ModuleNotFoundError: No module named ‘werkzeug.contrib‘

今天药忘吃喽~ 2022-11-28 00:59 326阅读 0赞

from werkzeug.contrib.cache import SimpleCache

今天在执行上面这段代码时，Python解释器报错：

ModuleNotFoundError: No module named 'werkzeug.contrib'

首先使用pip查看当前已安装`werkzeug`的信息：

pip show werkzeug

Name: Werkzeug
    Version: 1.0.1
    Summary: The comprehensive WSGI web application library.
    Home-page: https://palletsprojects.com/p/werkzeug/
    Author: Armin Ronacher
    Author-email: armin.ronacher@active-4.com
    License: BSD-3-Clause
    Location: d:\python38\lib\site-packages
    Requires:
    Required-by: Flask

发现当前安装的`Werkzeug`版本为1.0.1，于是翻阅werkzeug的[官方文档][Link 1]

**首先发现了这段话：**

> **The contrib modules are deprecated** and will either be moved into werkzeug core or removed completely in **version 1.0.**  
> Some modules that already issued deprecation warnings have been removed.  
> Be sure to run or test your code with python -W default::DeprecationWarning to catch any deprecated code you’re using. (\#4)

意思是： **werkzeug.contrib已经在1.0版本被移除了！**

卧槽，那我要用的`cache`模块去哪了？

于是继续阅读文档发现了这段话：

> **cache has been extracted into a separate project, cachelib. Theversion in Werkzeug is deprecated.**

原来`cache`现在已经变成了一个单独的项目，叫`cachelib`！

进行安装

pip install cachelib

测试

from cachelib import SimpleCache

噢！完全正常，看来只是因为版本升级导致模块找不到而已。

又可以继续写代码了……

[Link 1]: https://werkzeug.palletsprojects.com/en/1.0.x/changes/#version-1-0-1