human
Solve the following python programming problem given the following code:
def _reloader_inotify(extra_files = None, interval = None) : 
    changed = [False] 
    from pyinotify import WatchManager, Notifier 
    try : 
        from pyinotify import EventsCodes as ec 
        ec.IN_ATTRIB 
except (ImportError, AttributeError) : 
        import pyinotify as ec 
wm = WatchManager () 
    mask = (((ec.IN_DELETE_SELF | ec.IN_MOVE_SELF) | ec.IN_MODIFY) | ec.IN_ATTRIB) 
    def signal_changed(event) : 
        if changed [0] : 
            return 
_log ('info', (' * Detected change in %r, reloading' % event.path)) 
        changed [:] = [True] 
for fname in (wm or ()) : 
        wm.add_watch (fname, mask, signal_changed) 
notif = Notifier (wm) 
    try : 
        while (not changed [0]) : 
            for fname in _iter_module_files () : 
                wm.add_watch (fname, mask, signal_changed) 
notif.process_events () 
            if notif.check_events (timeout = interval) : 
                notif.read_events () 
finally : 
        notif.stop () 
sys.exit (3) 

    
    

    Fix the buggy line: for fname in (wm or ()) :
assistant
#Here is Python program to fix the buggy line: for fname in (wm or ()) :
.

for fname in (extra_files or ()) :