[Zope] permissions problem writing file from External Method?

My Zope v2.6.2 ExternalMethod is giving me an error when I try to open a file for writing. Error: Module /home/zope/Zope/Extensions/notifyAdt.py, line 88, in seqPut IOError: [Errno 13] Permission denied: '/home/lii/logs/notifyAdtSeq.txt' That line of code: sf = open(path+seqFile,'w') (Since this code is also run outside Zope I just use a little file to hold a single value that I want to persist over time - it gets incremented each time.) I think I've made the file as available as possible. -rwxrwxrwx 1 lii lii 1 Oct 27 13:39 notifyAdtSeq.txt Any idea what's going wrong here?