functools没有属性lru_cache

Question

我在我的Windows上使用Python 3.7

运行每个代码时都会出现此错误：

Traceback (most recent call last):
  File "test.py", line 1, in <module>
    import nltk
  File "C:\Users\HP\AppData\Local\Programs\Python\Python37\lib\site-packages\nltk\__init__.py", line 99, in <module>
    from nltk.internals import config_java
  File "C:\Users\HP\AppData\Local\Programs\Python\Python37\lib\site-packages\nltk\internals.py", line 11, in <module>
    import subprocess
  File "C:\Users\HP\AppData\Local\Programs\Python\Python37\lib\subprocess.py", line 50, in <module>
    import signal
  File "C:\Users\HP\AppData\Local\Programs\Python\Python37\lib\signal.py", line 3, in <module>
    from functools import wraps as _wraps
  File "C:\Users\HP\AppData\Local\Programs\Python\Python37\lib\functools.py", line 21, in <module>
    from collections import namedtuple
  File "C:\Users\HP\AppData\Local\Programs\Python\Python37\lib\collections\__init__.py", line 22, in <module>
    from keyword import iskeyword as _iskeyword
  File "C:\Users\HP\Desktop\tweepy\keyword.py", line 1, in <module>
    import re
  File "C:\Users\HP\AppData\Local\Programs\Python\Python37\lib\re.py", line 297, in <module>
    @functools.lru_cache(_MAXCACHE)
AttributeError: module 'functools' has no attribute 'lru_cache'

如何修复它？

Answer 1

它看起来像是有人在pypi上发布了一个functools包，所以如果你运行了：

# don't run this!
pip install functools

您可能不小心安装了该软件包。如果您遇到此错误，我将：

pip uninstall functools

以确保您正在使用的functools是基础包functools。

(我之所以在这里结束，是因为我尝试使用functools.cache，它似乎只出现在Python3.8中，而不是更早的版本。)

Answer 2

我最近遇到了同样的错误，这是因为我的项目中有一个名为functools.py的文件。重命名解决了这个问题。