title: Python crashing when running two commands (Segmentation Fault: 11)
body: <p>Python interpreter is crashing when I run the second command.
  I have searched the web for this error and did not found anything.
  The error is showed below:</p>
  
  <pre><code>Python 2.7.5 (v2.7.5:ab05e7dd2788, May 13 2013, 13:18:45) 
  [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
  Type "help", "copyright", "credits" or "license" for more information.
  &gt;&gt;&gt; print 1
  1
  &gt;&gt;&gt; print 2
  Segmentation fault: 11
  </code></pre>
  
  <p>Why?</p>
  
  <p>I'm using Mac OS X Mavericks. I think that's relevant since it's a beta version.</p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>Forgot the problem details provided by the OSX:</p>
  
  <pre><code>Process:         Python [11053]
  Path:            /Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
  Identifier:      Python
  Version:         2.7.5 (2.7.5)
  Code Type:       X86-64 (Native)
  Parent Process:  bash [9217]
  Responsible:     Terminal [3148]
  User ID:         501
  
  Date/Time:       2013-08-10 00:29:28.571 -0300
  OS Version:      Mac OS X 10.9 (13A524d)
  Report Version:  11
  Anonymous UUID:  6AF2C70A-1C80-7F45-3A3D-E30D0725CDFC
  
  Sleep/Wake UUID: 7B2165E8-4B17-4E17-ADA7-BF9BCB380E8A
  
  Crashed Thread:  0  Dispatch queue: com.apple.main-thread
  
  Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
  Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000
  
  VM Regions Near 0:
  --&gt; 
      __TEXT                 0000000100000000-0000000100001000 [    4K] r-x/rwx SM=COW  /Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
  
  Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
  0   readline.so                     0x00000001002f2f97 call_readline + 647
  1   org.python.python               0x0000000100008e22 PyOS_Readline + 274
  2   org.python.python               0x000000010000a678 tok_nextc + 104
  3   org.python.python               0x000000010000ae23 PyTokenizer_Get + 147
  4   org.python.python               0x0000000100005a1a parsetok + 218
  5   org.python.python               0x00000001000e8a52 PyParser_ASTFromFile + 146
  6   org.python.python               0x00000001000e9d33 PyRun_InteractiveOneFlags + 243
  7   org.python.python               0x00000001000ea01e PyRun_InteractiveLoopFlags + 78
  8   org.python.python               0x00000001000ea831 PyRun_AnyFileExFlags + 161
  9   org.python.python               0x00000001001014ed Py_Main + 3101
  10  org.python.python               0x0000000100000f14 0x100000000 + 3860
  
  Thread 0 crashed with X86 Thread State (64-bit):
    rax: 0x0000000000000000  rbx: 0x0000000100335a70  rcx: 0x0000000100300000  rdx: 0x0000000000000a00
    rdi: 0x0000000000000000  rsi: 0x00000001002f3254  rbp: 0x00007fff5fbff540  rsp: 0x00007fff5fbff470
     r8: 0x0000000100300000   r9: 0x0000000000000208  r10: 0x0002000000000003  r11: 0x0000000000000001
    r12: 0x0000000000000001  r13: 0x0000000000000007  r14: 0x00007fff5fbff500  r15: 0x00007fff5fbff480
    rip: 0x00000001002f2f97  rfl: 0x0000000000010206  cr2: 0x0000000000000000
  
  Logical CPU:     1
  Error Code:      0x00000004
  Trap Number:     14
  
  
  Binary Images:
         0x100000000 -        0x100000fff +org.python.python (2.7.5 - 2.7.5) &lt;29DAB82B-5BC9-56CE-C09D-AE442FB37EF0&gt; /Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
         0x100003000 -        0x10016ffff +org.python.python (2.7.5, [c] 2004-2013 Python Software Foundation. - 2.7.5) &lt;CDFB33CA-71DD-B1C2-5262-545F3FA06153&gt; /Library/Frameworks/Python.framework/Versions/2.7/Python
         0x1002f1000 -        0x1002f3ff7 +readline.so (???) &lt;6EA1FE1F-B78C-23EF-A4C2-9B7E9FB8B643&gt; /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/readline.so
         0x1004b0000 -        0x1004ceffb  libedit.2.dylib (39) &lt;1B0596DB-F336-32E7-BB9F-51BF70DB5305&gt; /usr/lib/libedit.2.dylib
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      0x7fff6424d000 -     0x7fff6428068f  dyld (239) &lt;7BD34028-A0FE-3543-955A-CEE43C7ECE2E&gt; /usr/lib/dyld
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      0x7fff8a00d000 -     0x7fff8a00effb  libSystem.B.dylib (1197.1.1) &lt;0F46AD54-E26B-340A-A26D-37086FBF7B57&gt; /usr/lib/libSystem.B.dylib
      0x7fff8a328000 -     0x7fff8a329ff7  libDiagnosticMessagesClient.dylib (100) &lt;4CDB0F7B-C0AF-3424-BC39-495696F0DB1E&gt; /usr/lib/libDiagnosticMessagesClient.dylib
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      0x7fff8b10a000 -     0x7fff8b2eefff  com.apple.CoreFoundation (6.9 - 847.11) &lt;40C0F570-BBC0-3E9D-A83B-3E4083EA139E&gt; /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
      0x7fff8c8b4000 -     0x7fff8c8b9ff7  libunwind.dylib (35.3) &lt;E152AFEA-2133-3AF3-A3B8-BF7CFD3E05F5&gt; /usr/lib/system/libunwind.dylib
      0x7fff8c9b2000 -     0x7fff8cb5ff8f  libobjc.A.dylib (551) &lt;AD54B900-1384-3C07-AA2A-F7E6A03F0181&gt; /usr/lib/libobjc.A.dylib
      0x7fff8cb68000 -     0x7fff8cb8fffb  libsystem_info.dylib (449.1.2) &lt;B285AAF5-3046-37C2-A1F9-8042EC3F6B2E&gt; /usr/lib/system/libsystem_info.dylib
      0x7fff8cfcb000 -     0x7fff8d019fff  libcorecrypto.dylib (161.1) &lt;F3973C28-14B6-3006-BB2B-00DD7F09ABC7&gt; /usr/lib/system/libcorecrypto.dylib
      0x7fff8d8a1000 -     0x7fff8d8b2ff7  libsystem_asl.dylib (217.1.1) &lt;4B431390-9A03-3E03-9490-B5CA977BE1ED&gt; /usr/lib/system/libsystem_asl.dylib
      0x7fff8ea2e000 -     0x7fff8ea30ff3  libsystem_configuration.dylib (596.5) &lt;D36BC3FC-78CF-33D4-910B-6BC0FC2061C7&gt; /usr/lib/system/libsystem_configuration.dylib
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      0x7fff91455000 -     0x7fff91466ff7  libz.1.dylib (53) &lt;42E0C8C6-CA38-3CA4-8619-D24ED5DD492E&gt; /usr/lib/libz.1.dylib
      0x7fff914ef000 -     0x7fff914f6ffb  liblaunch.dylib (842.1.1) &lt;B6FB3F53-9F4A-32AF-9B11-EEFFC6C2B1C4&gt; /usr/lib/system/liblaunch.dylib
      0x7fff91529000 -     0x7fff9152afff  libunc.dylib (28) &lt;29F4D08C-F997-3EF6-A487-382925450C4B&gt; /usr/lib/system/libunc.dylib
      0x7fff91a4c000 -     0x7fff91a9efff  libc++.1.dylib (120) &lt;0CD61156-DCA0-3221-9CB7-A01695DE1D39&gt; /usr/lib/libc++.1.dylib
      0x7fff92230000 -     0x7fff92272ff7  libauto.dylib (185.5) &lt;4E107C53-8F50-3B87-B7A9-FE60FFA13FE1&gt; /usr/lib/libauto.dylib
      0x7fff9227f000 -     0x7fff92288ff3  libsystem_notify.dylib (121) &lt;9D7C2C0E-BC86-3C49-BD3D-E71C916090DB&gt; /usr/lib/system/libsystem_notify.dylib
      0x7fff929c0000 -     0x7fff929c6ff7  libsystem_platform.dylib (24.1.3) &lt;8C53550A-3B73-3DC9-85D7-92BEC13BB637&gt; /usr/lib/system/libsystem_platform.dylib
      0x7fff92af7000 -     0x7fff92b80ff7  libsystem_c.dylib (997.1.1) &lt;6A5FE5FF-3EB3-3DAC-9259-905142C78408&gt; /usr/lib/system/libsystem_c.dylib
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      0x7fff92d77000 -     0x7fff92d92ff7  libsystem_malloc.dylib (23.1.7) &lt;C7493811-CC98-351C-A44A-1EC4C223E2BC&gt; /usr/lib/system/libsystem_malloc.dylib
  
  External Modification Summary:
    Calls made by other processes targeting this process:
      task_for_pid: 0
      thread_create: 0
      thread_set_state: 0
    Calls made by this process:
      task_for_pid: 0
      thread_create: 0
      thread_set_state: 0
    Calls made by all processes on this machine:
      task_for_pid: 65487
      thread_create: 0
      thread_set_state: 0
  
  VM Region Summary:
  ReadOnly portion of Libraries: Total=75.1M resident=40.5M(54%) swapped_out_or_unallocated=34.6M(46%)
  Writable regions: Total=27.7M written=2232K(8%) resident=2556K(9%) swapped_out=0K(0%) unallocated=25.2M(91%)
  
  REGION TYPE                      VIRTUAL
  ===========                      =======
  Kernel Alloc Once                     4K
  MALLOC                             19.4M
  MALLOC (admin)                       16K
  STACK GUARD                        56.0M
  Stack                              8192K
  VM_ALLOCATE                           8K
  __DATA                             1408K
  __LINKEDIT                         64.4M
  __TEXT                             10.7M
  __UNICODE                           544K
  shared memory                         4K
  ===========                      =======
  TOTAL                             160.4M
  </code></pre>