catch and ignore TypeError in rewrite_errors
catch and ignore TypeError in rewrite_errors


git-svn-id: 74b2def6592cf29d88d1a5d33b5c4a2732d8507c@241 67cdc799-7952-0410-af00-57a81ceafa0f

pscottdevos/pyfilesystem,alekibango/pyfilesystem,anthonybishopric/pyboxfs,alekibango/pyfilesystem,pscottdevos/pyfilesystem,simonluijk/pyFilesystem,anthonybishopric/pyboxfs,duedil-ltd/pyfilesystem,revolunet/pyfilesystem