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Sage on MacBookAir


I've been running sage on a macbook air for some time now but it has stopped working. On launch it does not open the tab listing my worksheets. The problem used to be intermittent and self-correcting but now it seems to be permanent. My version of Sage is 5.12-OSX-64bit-10.8. On second thoughts I suspect the problem has got to do with my most recent update of OSX. Any help greatly appreciated as I would like to back up my worksheets before upgrading.

Thanks gabriel

Here is the log if it helps

Please wait while the Sage Notebook server starts... Traceback (most recent call last): File "/Applications/", line 9, in <module> from sage.all import * File "/Applications/", line 59, in <module> import operator ImportError: dlopen(/Applications/, 2): Symbol not found: __PyUnicodeUCS4_AsDefaultEncodedString Referenced from: /Applications/ Expected in: flat namespace in /Applications/