title: Installing python (same version) on accident twice
body: <p>I accidentally installed python 2.7 again on my mac (mountain lion), when trying to install scipy using macports:</p>
  
  <blockquote>
    <p>sudo port install py27-scipy</p>
    
    <p>--->  Computing dependencies for py27-scipy</p>
    
    <p>--->  Dependencies to be installed: SuiteSparse gcc47 cctools cctools-headers llvm-3.3 libffi llvm_select cloog gmp isl gcc_select
    ld64 libiconv libmpc mpfr libstdcxx ppl glpk zlib py27-nose
    nosetests_select py27-setuptools <strong>python27</strong> bzip2 db46 db_select
    gettext expat ncurses libedit openssl python_select sqlite3 py27-numpy
    fftw-3 swig-python swig pcre</p>
  </blockquote>
  
  <p>I am still using my original install of python (and matplotlib and numpy etc), without scipy. How do I remove this new version? It is taking up ~2Gb space.</p>