title: Python3 installed successfully, but cannot be opened in terminal
body: <p>Yesterday I've reinstalled my Mac OS X 10.8, before this reinstallation there were python2.7.5 and python3.3.2 installed on my machine and worked fine, but after this system reinstallation I cannot open python3 again. So I downloaded the DMG package of Python3 and reinstalled it again, but it still throwing this exception in terminal:</p>
  
  <pre><code>Fatal Python error: Py_Initialize: unable to load the file system codec 
  File"/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/encodings/__init__.py", line 123
  raise CodecRegistryError,\
                          ^
  SyntaxError: invalid syntax
  Abort trap: 6
  </code></pre>
  
  <p>Then a system problem report window appeared:
  it said:</p>
  
  <pre><code>Process:         Python [51780]
  Path:            /Library/Frameworks/Python.framework/Versions/3.3/Resources/Python.app/Contents/MacOS/Python
  Identifier:      Python
  Version:         3.3.2 (3.3.2)
  Code Type:       X86-64 (Native)
  Parent Process:  bash [51586]
  User ID:         501
  
  Date/Time:       2013-09-23 00:40:19.908 +0800
  OS Version:      Mac OS X 10.8.5 (12F37)
  Report Version:  10
  
  Interval Since Last Report:          77033 sec
  Crashes Since Last Report:           1982088234
  Per-App Crashes Since Last Report:   4
  Anonymous UUID:                      1FEE4EB2-0D26-4DDF-9954-4423C040AECB
  
  Crashed Thread:  0  Dispatch queue: com.apple.main-thread
  
  Exception Type:  EXC_CRASH (SIGABRT)
  Exception Codes: 0x0000000000000000, 0x0000000000000000
  
  Application Specific Information:
  abort() called
  </code></pre>