Questions about the watchdog monitoring files dynamically return values-CodePudding

 
The from watchdog. Observers import Observer 
The from watchdog. Events import * 

The class FileEventHandler (FileSystemEventHandler) : 
# magic method to initialize 
Def __init__ (self) : 
FileSystemEventHandler. __init__ (self) 
Self. FileNameList=[] # file name list (stored filename) 


# create a file or folder 

Def on_created (self, event) : 
If the event. Is_directory: 
Print (" directory created: {0} ". The format (event. Src_path)) 
The else: 
Pass 
# print (" the file created: {0} ". The format (event. Src_path)) 
FileAllName=STR (event. Src_path. Split ('/') [1]) 
If fileAllName. Endswith (' wav ') : 
Self. FileNameList. Append (fileAllName) 
# self. FileAllName=fileAllName 
# print (fileAllName) 
Return the self. FileNameList 
# print (self. FileNameList) 

Def file_path (self, fileNameList) : 
FileName=fileNameList 
Return the fileName 

If __name__=="__main__" : 
# to instantiate the Observer object 
The observer=the observer () 
Event_handler=FileEventHandler () 
FileNameList=event_handler. FileNameList 
B=event_handler. File_path (fileNameList) 
For a in b: 
Print (a) 

# set to monitor directory 
Dis_dir="D: \ \ luyin" 
IsExists=OS. Path. The exists (dis_dir) 
If not isExists: 
OS. Makedirs (dis_dir) 
The observer. The schedule (event_handler dis_dir, True) 
The observer. The start () 
Try: 
While True: 
# set to monitor frequency (cycle time interval) 
Time. Sleep (1) 
Except KeyboardInterrupt: 
The observer. The stop () 
The observer. The join ()

Now the problem is def on_created () can monitor on the new file normally, need is def file_path () to call def on_created () returns a value, the current has been calling is not successful, please which gives directions, the code above altered, to some mistake, logic is as follows