我在这里阅读并尝试了所有评论：为什么Python 3.6.1抛出AttributeError：模块'enum'没有属性'IntFlag'？但仍然没有帮助。
我正在使用Pycharm Pycharm 2018.3 Community Edition，而我的Python版本是3.7
每次尝试为Pycharm设置解释器时，都会出现此错误：
Error in sitecustomize;
set PYTHONVERBOSE for traceback: AttributeError: module 'enum' has no attribute 'IntFlag'
Traceback (most recent call last): File "/Applications/PyCharm CE.app/Contents/helpers/packaging_tool.py", line 2, in <module>
import traceback File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/traceback.py", line 5, in <module>
import linecache File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/linecache.py", line 11, in <module>
import tokenize File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tokenize.py", line 33, in <module>
import re File "/usr/local/Cellar/python/3.7.1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/re.py", line 143, in <module>
class RegexFlag(enum.IntFlag): AttributeError: module 'enum' has no attribute 'IntFlag'
希望得到帮助。