首先最新的链接地址和《python绝技》上不同，已经修改。
下载后tar，然后运行python setup.py install
root@kali:/# wget http://xael.org/pages/python-nmap-0.6.1.tar.gz
--2017-03-22 13:41:38-- http://xael.org/pages/python-nmap-0.6.1.tar.gz
Resolving xael.org (xael.org)... 194.36.166.10
Connecting to xael.org (xael.org)|194.36.166.10|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 41953 (41K) [application/x-gzip]
Saving to: ‘python-nmap-0.6.1.tar.gz’
python-nmap-0.6.1.t 100%[===================>] 40.97K 6.93KB/s in 5.9s
2017-03-22 13:41:49 (6.93 KB/s) - ‘python-nmap-0.6.1.tar.gz’ saved [41953/41953]
