Why Python 3.6.1 throws AttributeError: module 'enum' has no attribute 'IntFlag'?
I just installed Python 3.6.1 for MacOS X
When I attempt to run the Console(or run anything with Python3), this error is thrown:
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'
The class IntFlag exists within enum.py. So, why is the AttributeError being thrown?
It's because your enum
is not the standard library enum
module. You probably have the package enum34
installed.
One way check if this is the case is to inspect the property enum.__file__
import enum
print(enum.__file__)
# standard library location should be something like
# /usr/local/lib/python3.6/enum.py
Since python 3.6 the enum34 library is no longer compatible with the standard library. The library is also unnecessary, so you can simply uninstall it.
pip uninstall -y enum34
If you need the code to run on python versions both <=3.4 and >3.4, you can try having enum-compat
as a requirement. It only installs enum34
for older versions of python without the standard library enum.
Not sure whether you still have this issue. I had a similar issue and I was able to resolve it simply by unsetting PYTHONPATH
$ unset PYTHONPATH
For me this error occured after installing of gcloud component app-engine-python in order to integrate into pycharm. Uninstalling the module helped, even if pycharm is now not uploading to app-engine.
If anyone coming here because of getting this error while running a google app engine Python 3.7 standard environment project in PyCharm then all you need to do is
- Make sure the configuration to run is for Flask, not Google App Engine configuration.
- Then disable Google App Engine support under Preferences >> Languages & Framework >> Google App Engine
The reason being as per this link
The overall goal is that your app should be fully portable and run in any standard Python environment. You write a standard Python app, not an App Engine Python app. As part of this shift, you are no longer required to use proprietary App Engine APIs and services for your app's core functionality. At this time, App Engine APIs are not available in the Python 3.7 runtime.
I guess when we create a python 3.7 project in PyCharm as a Google app engine project it still tries to do the same way it does for a python2.7 app
DISCLAIMER: Please, @juanpa.arrivillaga, if you see this answer, feel free to write your own and I will remove this post.
@juanpa.arrivillaga had mentioned above:
Is there a file name enum.py in your working directory, by any chance?
This was the issue I encountered. I was not aware of the enum module on python at the time and had named my test file enum.py
.
Since the file name is the module name, there was a conflict. More info on modules here: https://docs.python.org/2/tutorial/modules.html