为什么选择Python 3.6。1抛出AttributeError:模块“enum”没有属性“IntFlag”？

Question

我刚刚为MacOS X安装了Python 3.6.1

当我尝试运行控制台（或使用Python3运行任何东西）时，会引发以下错误：

  AttributeError: module 'enum' has no attribute 'IntFlag'

$ /Library/Frameworks/Python.framework/Versions/3.6/bin/python3  
Failed to import the site module  
Traceback (most recent call last):  
  File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site.py", line 544, in <module>  
    main()  
  File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site.py", line 530, in main  
    known_paths = addusersitepackages(known_paths)  
  File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site.py", line 282, in addusersitepackages  
    user_site = getusersitepackages()  
  File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site.py", line 258, in getusersitepackages  
    user_base = getuserbase() # this will also set USER_BASE  
  File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site.py", line 248, in getuserbase  
    USER_BASE = get_config_var('userbase')  
  File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/sysconfig.py", line 601, in get_config_var  
    return get_config_vars().get(name)  
  File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/sysconfig.py", line 580, in get_config_vars  
    import _osx_support  
  File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/_osx_support.py", line 4, in <module>  
    import re  
  File "/usr/local/Cellar/python3/3.6.1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/re.py", line 142, in <module>  
    class RegexFlag(enum.IntFlag):  
AttributeError: module 'enum' has no attribute 'IntFlag'  

类IntFlag存在于枚举中。皮耶。那么，为什么要抛出AttributeError呢？

Answer 1

对我来说，这个错误发生在安装了gCloud组件app-Engine-python以便集成到py魅力之后。卸载模块有帮助，即使py魅力现在没有上传到应用程序引擎。

Answer 2

不确定您是否仍然存在此问题。我有一个类似的问题，我能够解决它，只需取消PYTHONPATH

$unset PYTHONPATH

Answer 3

这是因为您的enum不是标准库enum模块。您可能已经安装了包enum34。

如果是这种情况，检查的一种方法是检查属性枚举。__file__

import enum
print(enum.__file__)  
# standard library location should be something like 
# /usr/local/lib/python3.6/enum.py

自从python 3.6以来，枚举34库不再与标准库兼容。库也是不必要的，所以你可以简单地卸载它。

pip uninstall -y enum34

如果您需要在python版本上运行代码，则