Jupiter and notebook start problem

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I am running MacOSX 10.11.6. After update to Sage 8.0 there is a problem to start Jupiter or the notebook server. Here some terminal output:

Benutzers-Air:~ Benutzer$ '/Applications/SageMath-8.0.app/Contents/Resources/sage/sage' --notebook=sagenb

/Applications/SageMath-8.0.app/Contents/Resources/sage/src/bin/sage-env: line 428: 17594 Trace/BPT trap: 5       "$SAGE_LOCAL/bin/python" -c 'import pkg_resources; pkg_resources.get_distribution("matplotlib").version' 2> /dev/null
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 8.0, Release Date: 2017-07-21                     │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘
Please wait while the old SageNB Notebook server starts...
dyld: lazy symbol binding failed: Symbol not found: _getentropy
  Referenced from: /Applications/SageMath-8.0.app/Contents/Resources/sage/local/lib/libpython2.7.dylib
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: _getentropy
  Referenced from: /Applications/SageMath-8.0.app/Contents/Resources/sage/local/lib/libpython2.7.dylib
  Expected in: /usr/lib/libSystem.B.dylib