问题描述
我正在使用python 3的模块tftpy尝试处理文件的tftp样式下载。但是,当我运行该应用程序时,出现以下错误:
\python38\site-packages\tftpy\TftpStates.py",line 53,in handleOACK
raise TftpException("No options found in OACK")
tftpy.TftpShared.TftpException: No options found in OACK
我如何让我的python项目忽略OACK /发送不包含OACK的新请求数据包?
免责声明:这是我第一次尝试使用TFTP数据包,所以我还很新。如果我提出的问题不是解决问题的合适方法,我应该怎么做?
有关该问题的更多数据:
- 我使用的外部芯片被编程为忽略OACK数据包选项。
- 当我使用C#和TFTP.Net程序包时,传输有效,所以我认为这与我的TFTP服务器无关。但是,由于我们的主要应用程序基于python,所以我希望能够通过python 3处理这种通信。
- 我正在运行python 3.8.5
- 在我的服务器端,它说接收到一个错误代码为8的数据包。
python脚本:
import tftpy
client = tftpy.TftpClient('192.168.0.42',69)
client.download('triplog.txt','faultlog.txt',packethook=None,timeout=5)
完整追溯:
Failed to negotiate options: No options found in OACK
Traceback (most recent call last):
File "C:\Users\selena\Documents\PythonScripts\TFTP\TFTPTestScript.py",line 23,in <module>
client.download('triplog.txt',timeout=5)
File "C:\Users\selena\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\python38\site-packages\tftpy\TftpClient.py",line 58,in download
self.context.start()
File "C:\Users\selena\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\python38\site-packages\tftpy\TftpContexts.py",line 402,in start
self.cycle()
File "C:\Users\selena\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\python38\site-packages\tftpy\TftpContexts.py",line 202,in cycle
self.state = self.state.handle(recvpkt,raddress,rport)
File "C:\Users\selena\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\python38\site-packages\tftpy\TftpStates.py",line 566,in handle
self.handleOACK(pkt)
File "C:\Users\selena\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\python38\site-packages\tftpy\TftpStates.py",in handleOACK
raise TftpException("No options found in OACK")
tftpy.TftpShared.TftpException: No options found in OACK
[Finished in 0.7s with exit code 1]
解决方法
为此解决方法提供信用@ewong
即使我不需要它们,代码也可以在初始化客户端时添加选项后起作用。我将提交一个问题@https://github.com/msoulier/tftpy,以查看这是需要解决的错误还是有选择的选择。
解决方案代码:
import tftpy
client = tftpy.TftpClient('192.168.0.42',69,options={'blksize': 8})
client.download('triplog.txt','faultlog.txt',packethook=None,timeout=5)