在沒有自制軟件的Python的情況下使用virtualenv和virtualenvwrapper

Question

我使用Homebrew來管理大多數軟件安裝，但是我發現使用Python（尤其是virtualenv（和virtualenvwrapper））以單獨的方式管理軟件包非常復雜。 問題是我發現virtualenv將python符號鏈接到通過Homebrew安裝的當前版本的Python，如下所示：

~/.pip/virtualenvs/httpie
├── include
│   └── python2.7 -> /usr/local/Cellar/python/2.7.7_2/Frameworks/Python.framework/Versions/2.7/include/python2.7
└── lib
    └── python2.7
        ├── UserDict.py -> /usr/local/Cellar/python/2.7.7_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/UserDict.py
        ├── UserDict.pyc
        ├── _abcoll.py -> /usr/local/Cellar/python/2.7.7_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/_abcoll.py
        ├── _abcoll.pyc
        ├── _weakrefset.py -> /usr/local/Cellar/python/2.7.7_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/_weakrefset.py
        ├── _weakrefset.pyc
        ├── abc.py -> /usr/local/Cellar/python/2.7.7_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/abc.py
        ├── abc.pyc
        ├── codecs.py -> /usr/local/Cellar/python/2.7.7_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/codecs.py
        ├── codecs.pyc
[...]

每當通過自制程序對Python進行更新時，這會引起各種鏈接問題：

$ http --head http://flic.kr/p/dQm85A
dyld: Library not loaded: @executable_path/../.Python
  Referenced from: /Users/3dweb/.pip/virtualenvs/httpie/bin/python2.7
  Reason: image not found
Trace/BPT trap: 5

每當創建新的virtualenv時，如何將virtualenv設置為始終（自動）指向系統Python？

Answer 1

通過自制軟件以外的pip將virtualenv安裝到系統Python中。 直接調用virtualenv。