Network¶

Utils for handling network.

pydu.network.dotted_netmask(mask)¶

Converts mask from /xx format to xxx.xxx.xxx.xxx. mask can be either int or str.

>>> from pydu.network import dotted_netmask
>>> dotted_netmask('24')
'255.255.255.0'
>>> dotted_netmask(24)
'255.255.255.0'

pydu.network.private_ipv4s¶: A list of private ipv4 addresses. Each item is a tuple of (ipv4 address, mask).

pydu.network.is_ipv4(ip)¶

Judge whether the given ip is IPV4 address.

>>> from pydu.network import is_ipv4
>>> is_ipv4('8.8.8.8')
True
>>> is_ipv4('localhost.localdomain')
False

pydu.network.is_ipv6(ip)¶

Judge whether the given ip is IPV6 address.

>>> from pydu.network import is_ipv6
>>> is_ipv6('fe80::9e5b:b149:e187:1a18')
True
>>> is_ipv6('localhost.localdomain')
False

pydu.network.get_free_port()¶

Get free port which could be bound.

>>> from pydu.network import get_free_port
>>> get_free_port()
57118

pydu.network.ip2int(ip_str)¶

Convert ip to integer. Support IPV4 and IPV6. Raise ValueError if convert failed.

>>> from pydu.network import ip2int
>>> ip2int('10.1.1.1')
167837953

pydu.network.int2ip(ip_int)¶

Convert integer to ip. Support IPV4 and IPV6. Raise ValueError if convert failed.

>>> from pydu.network import int2ip
>>> int2ip(167837953)
'10.1.1.1'