在我的文件中导入 scapy.all 时出现问题

Question

I am having issues when importing scapy in my Ubuntu virtual machine.
I can easily use from scapy.all import * in the terminal.
I am using Visual Studio Code and when I hover over scapy, right click and go to defintion, it takes me to the scapy file.
Here's what solutions I've seen and tried:

1. My filename(or any filename in the folder) is not "scapy.py".

2. I've installed scapy directly from the website, used "sudo apt-get install python3-scapy" and also tried with "pip install scapy". None of which changed anything.

3. If I run another python file (without "sudo" and with "from scapy.all import *") it runs fine. But there is an import issue when I use "sudo".

4. I tried to do the following to solve my issue:

   • Type in the terminal:
     sudo mkdir /usr/lib/python2.7/dist-packages/scapy
cd /usr/lib/python3/dist-packages/
cp -avr scapy/* /usr/lib/python2.7/dist-packages/scapy \\

   This also didnt work out.

5. I also thought maybe I messed up some of the module files. So I tried doing everything on a new VirtualBox image. But that also failed.

6. I can type "scapy" in the terminal and it opens up fine.

my python version is 3.8.10
Scapy version: 2.4.5

I've been stuck on this for 4 days. Please help.

Answer 1

it's recommended to use virtualenv , it will resolve the conflict if you have multiple python versions.

• create a virtual environment, by the following commands

  virtualenv env -p python3

• then activate it

  source env/bin/activate

• then install scapy using pip:

  pip install scapy

and try to import the library from there.

Answer 2

Packages installed on a non-root user are not installed system wide, thus there is an import issue when you run the script as a root user
Some solutions that can be used:

1. Install scapy to root user too

• Switch to root

sudo su

• Install scapy

pip install scapy

• You can then run your script locally and no issues brought up

sudo python3 script.py

2. Alternatively, create a virtual environment ( recommended ) and install scapy there

• Create a virtual environment

demo@stack:~/demo$ virtualenv venv

• Activate the virtual environment

demo@stack:~/demo$ source venv/bin/activate

• Install scapy via pip into the new virtual environment

(venv) demo@stack:~/demo$ pip install scapy

• You can now run your script with superuser permissions without issue

(venv) demo@stack:~/demo$ sudo python3 script.py