ValueError: ('illegal netmask value', '0x0')

[qzpzp]

系统 centos7.8 虚拟机
报错代码

Traceback (most recent call last):
File "kickthemout.py", line 756, in
defaultInterface = getDefaultInterface()
File "kickthemout.py", line 155, in getDefaultInterface
net = to_CIDR_notation(network, netmask)
File "kickthemout.py", line 147, in to_CIDR_notation
netmask = long2net(bytes_netmask)
File "kickthemout.py", line 143, in long2net
raise ValueError("illegal netmask value", hex(arg))
ValueError: ('illegal netmask value', '0x0')