python - Pyshark FileCapture 不起作用

Question

我是pyshark的新手，我在教程上搜索写了一个示例代码

import pyshark
cap = pyshark.FileCapture("input.cap")
cap_1 = cap[0]

然后它给我一个错误

/Users/tingyugu/anaconda3/bin/python /Users/tingyugu/PycharmProjects/final/test.py
Traceback (most recent call last):
File "/Users/tingyugu/anaconda3/lib/python3.6/site-packages/pyshark/capture/file_capture.py", line 70, in __getitem__
next(self)
File "/Users/tingyugu/anaconda3/lib/python3.6/site-packages/pyshark/capture/file_capture.py", line 60, in __next__
packet = self._packet_generator.send(None)
StopIteration

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/Users/tingyugu/PycharmProjects/final/test.py", line 5, in <module>
cap_1 = cap[0]
File "/Users/tingyugu/anaconda3/lib/python3.6/site-packages/pyshark/capture/file_capture.py", line 73, in __getitem__
raise KeyError('Packet of index %d does not exist in capture' % packet_index)
KeyError: 'Packet of index 0 does not exist in capture'

我知道是cap里面没有包的原因，但是我的 friend 可以通过pyshark读取文件

我用的是python 3.6.0 anaconda，anaconda中pyshark是0.3.7

Answer 1

如果您使用的是 jupyter，请参阅 this issue在 PyShark Repo 上。我遇到了同样的问题，似乎 pyshark 与 jupyter 不兼容。我假设它也可能与 ipython 有同样的问题。有一些拉取请求，例如 this one在他们的 repo 上也作为修复，但还没有合并。