I'm seeing a similar 'magic number' error when trying to start Calibre after the upgrade from Maverick to Natty:
Traceback (most recent call last): File "/usr/bin/calibre-server", line 18, in <module> from calibre.library.server.main import main File "/usr/lib/calibre/calibre/library/server/main.py", line 12, in <module> from calibre.library.server.base import LibraryServer File "/usr/lib/calibre/calibre/library/server/base.py", line 21, in <module> from calibre.library.server.content import ContentServer File "/usr/lib/calibre/calibre/library/server/content.py", line 14, in <module> from calibre.library.caches import SortKeyGenerator File "/usr/lib/calibre/calibre/library/caches.py", line 16, in <module> from calibre.utils.search_query_parser import SearchQueryParser File "/usr/lib/calibre/calibre/utils/search_query_parser.py", line 21, in <module> from pyparsing import CaselessKeyword, Group, Forward, \ ImportError: Bad magic number in /usr/lib/calibre/calibre/utils/pyparsing.pyc -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/691608 Title: calibre does not start -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs