Fix IOError: [Errno 21] Is a directory: '.' Error
Fix IOError: [Errno 21] Is a directory: '.' Error

Be carreful when calling the 'Sfan' constructor, the 'networks_f' parameter must be a list, not a string.

chagaz/sfan,chagaz/sfan,chagaz/sfan,chagaz/sfan,chagaz/sfan