Python 2.7 on System, PIP and Virtualenv still using 2.6 - How do I switch them to use 2.7
Question: I am on MacOSx 10.6.8 and I have python 2.7 installed

python -v produces:

    
    
    Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34) 
    [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
    Type "help", "copyright", "credits" or "license" for more information.
    dlopen("/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/readline.so", 2);
    import readline # dynamically loaded from /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/readline.so
    

I them run:

    
    
    $ virtualenv venv
    

and then

    
    
    $ . venv/bin/activate
    

and do a python -v

and I get:

    
    
    Python 2.6.1 (r261:67515, Jun 24 2010, 21:47:49) 
    [GCC 4.2.1 (Apple Inc. build 5646)] on darwin
    Type "help", "copyright", "credits" or "license" for more information.
    dlopen("/Users/nkhdev/venv/lib/python2.6/lib-dynload/readline.so", 2);
    import readline # dynamically loaded from /Users/nkhdev/venv/lib/python2.6/lib-dynload/readline.so
    

Can someone tell me the steps to use have virtualenv create and use python 2.7
from my system? Or have virtualenv, use python 2.7 period. I don't care if the
version is my system version.


Answer: You probably used an existing, Apple-supplied version of `easy_install` to
install `pip` et al. By default, `easy_install` is associated with a
particular instance of Python, in this case, the Apple-supplied system Python
2.6. In general, when you install a new version of Python, you need to also
install a new `easy_install` for it. Follow [the instructions
here](http://pypi.python.org/pypi/distribute) for the Distribute package which
provides `easy_install`, then use it to install `pip` and use that `pip` to
install `virtualenv`.

