Comment installer virtualenv en utilisant pip dans MacOS High Sierra?

Question

commande que je l'habitude d'installer virtualenv: -

sudo pip install virtualenv 

Résultat: -

The directory '/Users/apple/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag. 

The directory '/Users/apple/Library/Caches/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag. 

Requirement already satisfied: virtualenv in /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages 

Answer 1

Si vous essayez de vous débarrasser de cette erreur en essayant de courir pip juste ajouter -h:

sudo -H pip install foo 

Answer 2

sudo -H pip install virtualenv 

(kodlan ne signifie pas littéralement foo ...)