Estaba tratando de usar virtualenv para cambiar entre versiones de python antes de saber que podía usar python y python3 en mi Mac.

Pude arreglar mi versión de python 2.7 para que aún funcione bien, sin embargo, ahora cuando ejecuto python3, aparece este error:

 Failed to import the site module Traceback (most recent call last): File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site.py", line 544, in <module> main() File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site.py", line 530, in main known_paths = addusersitepackages(known_paths) File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site.py", line 282, in addusersitepackages user_site = getusersitepackages() File "/usr/local/Cellar/python3/3.6.0/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/python3/3.6.0/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/python3/3.6.0/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/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/sysconfig.py", line 580, in get_config_vars import _osx_support File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/_osx_support.py", line 4, in <module> import re File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/re.py", line 125, in <module> import functools File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/functools.py", line 21, in <module> from collections import namedtuple File "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6/collections/__init__.py", line 32, in <module> from reprlib import recursive_repr as _recursive_repr File "/usr/local/lib/python2.7/site-packages/reprlib/__init__.py", line 7, in <module> raise ImportError('This package should not be accessible on Python 3. ' ImportError: This package should not be accessible on Python 3. Either you are trying to run from the python-future src folder or your installation of python-future is corrupted.

Busqué este error en línea, pero la mayor parte de la conversación se centró en arreglar el parche y luego actualizar virtualenv. Sin embargo, esto todavía no soluciona mi problema.

 python3 -V: Python 3.6.0 virtualenv --version: 15.1.0 env | egrep -i 'python|virtualenv': PYTHONPATH=/usr/local/lib/python2.7/site-packages: