Python Windows 路径未检测到

编程问答 2022-05-02

问题描述

我正在使用wathdog检测新文件，在windows操作系统中使用watchdog python模块修改文件。

但是无法检测文件路径

我的代码位于类似 L:\my_code\watch.py​​（在 L 驱动器中）的位置

import time
from watchdog.observers import Observer
from watchdog.events import PatternMatchingEventHandler

    

def on_created(event):
    print(f"hey,{event.src_path} has been created!")
    

def on_deleted(event):
    print(f"Someone deleted {event.src_path}!")

def on_modified(event):
    print(f"hey,{event.src_path} has been modified")
    

def on_moved(event):
    print(f"hey,someone moved {event.src_path} to {event.dest_path}")
    

if __name__ == "__main__":
    patterns = ["*"]
    ignore_patterns = None
    ignore_directories = False
    case_sensitive = True
    my_event_handler = PatternMatchingEventHandler(patterns,ignore_patterns,ignore_directories,case_sensitive)

    my_event_handler.on_created = on_created
    my_event_handler.on_deleted = on_deleted
    my_event_handler.on_modified = on_modified
    my_event_handler.on_moved = on_moved
    from pathlib import Path
    str_path = "\L\_REC"   
    
    path =  r"L:\_REC"
    #path = 'L:\\_REC'
    go_recursively = True
    my_observer = Observer()
    my_observer.schedule(my_event_handler,path,recursive=go_recursively)

    my_observer.start()
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        my_observer.stop()
        my_observer.join()

我需要检测 L:\_REC 目录下的文件更改，但出现以下错误

& 'C:\Users\vcimalap\AppData\Local\Programs\Python\python39\python.exe' 'c:\Users\vcimalap\.vscode\extensions\ms-python.python-2021.5.829140558\pythonFiles\lib\python\debugpy\launcher' '57901' '--' 'l:\External\watch_service.py'
Traceback (most recent call last):
  File "l:\External\watch_service.py",line 71,in <module>
    my_observer.start()
  File "C:\Users\vcimalap\AppData\Local\Programs\Python\python39\lib\site-packages\watchdog\observers\api.py",line 256,in start
    emitter.start()
  File "C:\Users\vcimalap\AppData\Local\Programs\Python\python39\lib\site-packages\watchdog\utils\__init__.py",line 93,in start
    self.on_thread_start()
  File "C:\Users\vcimalap\AppData\Local\Programs\Python\python39\lib\site-packages\watchdog\observers\read_directory_changes.py",line 66,in on_thread_start 
    self._handle = get_directory_handle(self.watch.path)
  File "C:\Users\vcimalap\AppData\Local\Programs\Python\python39\lib\site-packages\watchdog\observers\winapi.py",line 316,in get_directory_handle
    return CreateFileW(path,FILE_LIST_DIRECTORY,WATCHDOG_FILE_SHARE_FLAGS,File "C:\Users\vcimalap\AppData\Local\Programs\Python\python39\lib\site-packages\watchdog\observers\winapi.py",line 112,in _errcheck_handle
    raise ctypes.WinError()
FileNotFoundError: [WinError 3] The system cannot find the path specified.
PS L:\External>

我认为定义的文件路径是错误的，谁能帮我解决这个问题

解决方法

正确检查错误。它说文件：“l:\External\watch_service.py” 请将 L: 更新为 l:

pathpathpythonwatchdogwindowswindows