找不到 python scapy.all 文件 [英] python scapy.all file not found

问题描述

我试过运行我的程序，我试过 import scapy 然后 import scapy.all 但它会给我同样的错误.如果有帮助，我正在使用 kali-linux.导致错误的代码来自 scapy.all import *

这是完整的错误输出:

回溯(最近一次调用最后一次):文件/home/bradz/test.py"，第 24 行，在 <module> 中.from scapy.all 导入发送、IP、TCP、ARP文件/usr/local/lib/python3.9/dist-packages/scapy/all.py"，第16行，在<module>从 scapy.arch 导入 *文件/usr/local/lib/python3.9/dist-packages/scapy/arch/__init__.py"，第27行，在<module>从 scapy.arch.bpf.core 导入 get_if_raw_addr
文件/usr/local/lib/python3.9/dist-packages/scapy/arch/bpf/core.py"，第30行，在<module>LIBC = cdll.LoadLibrary(find_library(libc"))find_library 中的文件/usr/lib/python3.9/ctypes/util.py"，第 341 行_get_soname(_findLib_gcc(name)) 或 _get_soname(_findLib_ld(name))_findLib_gcc 中的文件/usr/lib/python3.9/ctypes/util.py"，第 147 行如果不是 _is_elf(file):文件/usr/lib/python3.9/ctypes/util.py"，第 99 行，在 _is_elf以 open(filename, 'br') 作为文件:FileNotFoundError: [Errno 2] 没有那个文件或目录: b'liblibc.a'

修复了它.你需要去:

/usr/lib/python3/dist-packages/scapy/arch/bpf/core.py

并编辑该行

LIBC = cdll.LoadLibrary(find_library(libc"))

到

LIBC = cdll.LoadLibrary(find_library(c"))

解决方案

这似乎是库中的一个错误 11 天前修复:

<块引用>

find_library() 在 Python 3.9 中有一个回归功能:

<预><代码>>>>导入 ctypes.util>>>ctypes.util.find_library(libc")回溯(最近一次调用最后一次):文件<stdin>"，第 1 行，在 <module> 中.find_library 中的文件/usr/lib/python3.9/ctypes/util.py"，第 341 行_get_soname(_findLib_gcc(name)) 或 _get_soname(_findLib_ld(name))_findLib_gcc 中的文件/usr/lib/python3.9/ctypes/util.py"，第 147 行如果不是 _is_elf(file):文件/usr/lib/python3.9/ctypes/util.py"，第 99 行，在 _is_elf以 open(filename, 'br') 作为文件:FileNotFoundError: [Errno 2] 没有那个文件或目录: b'liblibc.a'

一种解决方法是使用 find_library("c") 代替.它也适用于旧版本的 Python 已经在使用了contrib/isotp.py.

更新 scapy，因为您使用的 scapy 版本似乎与您的 CPython 版本不兼容.

---

实际上，PyPI 似乎还没有更新，因此您将无法通过 pip 进行更新.你可能需要回滚你的 Python 版本直到它更新，或者 手动从 Github 安装打补丁的 scapy 版本.

I have tried to run my program, and I have tried import scapy then import scapy.all but is will give me the same error. I am using kali-linux if that helps. The code that is causing the error is just from scapy.all import *

This is the full error output:

Traceback (most recent call last):
  File "/home/bradz/test.py", line 24, in <module>
    from scapy.all import send, IP, TCP, ARP
  File "/usr/local/lib/python3.9/dist-packages/scapy/all.py", line 16, in <module>
    from scapy.arch import *
  File "/usr/local/lib/python3.9/dist-packages/scapy/arch/__init__.py", line 27, in <module>
    from scapy.arch.bpf.core import get_if_raw_addr<br/>
  File "/usr/local/lib/python3.9/dist-packages/scapy/arch/bpf/core.py", line 30, in <module>
    LIBC = cdll.LoadLibrary(find_library("libc"))
  File "/usr/lib/python3.9/ctypes/util.py", line 341, in find_library
    _get_soname(_findLib_gcc(name)) or _get_soname(_findLib_ld(name))
  File "/usr/lib/python3.9/ctypes/util.py", line 147, in _findLib_gcc
    if not _is_elf(file):
  File "/usr/lib/python3.9/ctypes/util.py", line 99, in _is_elf
    with open(filename, 'br') as thefile:
FileNotFoundError: [Errno 2] No such file or directory: b'liblibc.a'

Fixed it. You need to go to:

/usr/lib/python3/dist-packages/scapy/arch/bpf/core.py

and edit the line

LIBC = cdll.LoadLibrary(find_library("libc"))

to

LIBC = cdll.LoadLibrary(find_library("c"))

解决方案

This appears to have been a bug in the library that was fixed 11 days ago:

There is a regression in Python 3.9 with the find_library() function:

>>> import ctypes.util
>>> ctypes.util.find_library("libc")
 Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File "/usr/lib/python3.9/ctypes/util.py", line 341, in find_library
     _get_soname(_findLib_gcc(name)) or _get_soname(_findLib_ld(name))
   File "/usr/lib/python3.9/ctypes/util.py", line 147, in _findLib_gcc
     if not _is_elf(file):
   File "/usr/lib/python3.9/ctypes/util.py", line 99, in _is_elf
     with open(filename, 'br') as thefile:
 FileNotFoundError: [Errno 2] No such file or directory: b'liblibc.a'

A workaround is to use find_library("c") instead. It also works in older versions of Python and that's already what's used in contrib/isotp.py.

Update scapy since you appear to be using a version of scapy that is incompatible with your version of CPython.

---

Actually, it looks like PyPI hasn't been updated yet, so you won't be able to update through pip. You may need to rollback your Python version until it's updated, or manually install the patched scapy version from Github.

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