1. First install python3, naturally after the installation is complete python3 the pip
2. Then use pip install scapy installation scapy, if prompted to upgrade to first upgrade pip pip, pip upgrade finished and then use this command to install scapy
3. After you install under the cmd if we can knock scapy, but prompt an error, go to this site to download the source code https://github.com/secdev/scapy
4. Then the downloaded package scapy folder to the python directory D: \ Program Files \ python \ Lib \ the site-packages \, installation directory
There is also scapy directory, direct coverage, pay attention here only to copy the folder like scapy
5. Open cmd, knock scapy success!