pip와 함께 virtualenv를 설치할 수없는 이유는 무엇입니까?

Question

내가 명령을 실행

$ pip install virtualenv 

예외가 시스템에 패키지를 설치하려면 관리자 권한이 필요 것처럼 보이는 눈에

Collecting virtualenv 
    Downloading virtualenv-15.1.0-py2.py3-none-any.whl (1.8MB) 
    100% |████████████████████████████████| 1.8MB 195kB/s 
Installing collected packages: virtualenv 
Exception: 
Traceback (most recent call last): 
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/basecommand.py", line 215, in main 
    status = self.run(options, args) 
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/commands/install.py", line 342, in run 
    prefix=options.prefix_path, 
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_set.py", line 784, in install 
    **kwargs 
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py", line 851, in install 
    self.move_wheel_files(self.source_dir, root=root, prefix=prefix) 
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py", line 1064, in move_wheel_files 
    isolated=self.isolated, 
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/wheel.py", line 345, in move_wheel_files 
    clobber(source, lib_dir, True) 
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/wheel.py", line 323, in clobber 
    shutil.copyfile(srcfile, destfile) 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 83, in copyfile 
    with open(dst, 'wb') as fdst: 
IOError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/virtualenv.py' 

Answer 1

을 발생합니다. 관리자 권한으로 시작하십시오 :

sudo pip install virtualenv