使用Python+pywinauto自动化WinSCP传输时打开目录窗口失败求助

问题详情 #

用Python结合pywinauto实现WinSCP文件传输自动化，计划通过发送Ctrl+0快捷键打开目录窗口并输入路径，但运行时窗口未弹出，且连接窗口时报错。

代码示例 #

kb.send_keys("^0")

app1 = Application().connect(title=u'Open directory')
win1 = app1.TOpenDirectoryDialog

src_folder = "/data/cog/deployments"
win1[u'Edit'].type_keys(src_folder)
win1.OK.click()

报错内容 #

Traceback (most recent call last):
  File "C:\Users\RAR\PycharmProjects\pythonAutomationproj\main.py", line 49, in <module>
    app1 = Application().connect(title=u'Open directory')
  File "C:\Users\RAR\PycharmProjects\pythonAutomationproj\venv\lib\site-packages\pywinauto\application.py", line 997, in connect
    self.process = findwindows.find_element(**kwargs).process_id
  File "C:\Users\RAR\PycharmProjects\pythonAutomationproj\venv\lib\site-packages\pywinauto\findwindows.py", line 87, in find_element
    raise ElementNotFoundError(kwargs)
pywinauto.findwindows.ElementNotFoundError: {'title': 'Open directory', 'backend': 'win32', 'visible_only': False}

解决办法 #

• 锁定WinSCP窗口发送快捷键：kb.send_keys会把按键发给当前活动窗口，不一定是WinSCP。先连接并激活WinSCP主窗口，再在其上下文发送快捷键：

  # 连接WinSCP主程序
  winscp_app = Application().connect(title_re="WinSCP.*")
  winscp_main = winscp_app.window(title_re="WinSCP.*")
  # 激活主窗口
  winscp_main.set_focus()
  # 在WinSCP窗口内发送Ctrl+0
  winscp_main.type_keys("^0")
  

• 增加窗口加载等待：快捷键触发窗口打开需要时间，直接连接会找不到，加延迟：

  import time
  winscp_main.type_keys("^0")
  time.sleep(1)  # 可根据实际情况调整时长
  

• 优化窗口查找参数：
  1. 用title_re模糊匹配标题：app1 = Application().connect(title_re="Open directory.*")
  2. 只查找可见窗口：app1 = Application().connect(title=u'Open directory', visible_only=True)
  3. 切换到UIA后端（WinSCP部分窗口依赖UIA框架）：app1 = Application(backend='uia').connect(title=u'Open directory')
• 菜单路径替代快捷键：如果快捷键不稳定，直接通过菜单打开目录窗口：

  winscp_main.menu_select("Commands->Open Directory...")
  

内容的提问来源于stack exchange，提问作者Rae