twisted.pair.test.test_tuntap.TestRealSystem

Method	open	Attempt an open, but if the file is /dev/net/tun and it does not exist, translate the error into `SkipTest` so that tests that require platform support for tuntap devices are skipped instead of failed.
Method	ioctl	Attempt an ioctl, but translate permission denied errors into `SkipTest` so that tests that require elevated system privileges and do not have them are skipped instead of failed.
Method	sendUDP	Use the platform network stack to send a datagram to the given address.
Method	receiveUDP	Use the platform network stack to receive a datagram sent to the given address.

def open(self, filename, *args, **kwargs):

from twisted.pair.tuntap._IInputOutputSystem

Attempt an open, but if the file is /dev/net/tun and it does not exist, translate the error into SkipTest so that tests that require platform support for tuntap devices are skipped instead of failed.

def ioctl(self, *args, **kwargs):

from twisted.pair.tuntap._IInputOutputSystem

Attempt an ioctl, but translate permission denied errors into SkipTest so that tests that require elevated system privileges and do not have them are skipped instead of failed.

def sendUDP(self, datagram, address):

from twisted.pair.tuntap._IInputOutputSystem

Use the platform network stack to send a datagram to the given address.

Parameters	datagram	A UDP datagram payload to send. (type: `bytes`)
	address	The destination to which to send the datagram. (type: `tuple` of (`bytes`, `int`))
Returns	The address from which the UDP datagram was sent. (type: `tuple` of (`bytes`, `int`))

def receiveUDP(self, fileno, host, port):

from twisted.pair.tuntap._IInputOutputSystem

Use the platform network stack to receive a datagram sent to the given address.

Parameters	fileno	The file descriptor of the tunnel used to send the datagram. This is ignored because a real socket is used to receive the datagram. (type: `int`)
	host	The IPv4 address at which the datagram will be received. (type: `bytes`)
	port	The UDP port number at which the datagram will be received. (type: `int`)
Returns	A `socket.socket` which can be used to receive the specified datagram.

twisted.pair.test.test_tuntap.TestRealSystem(_RealSystem) class documentation

`twisted.pair.test.test_tuntap.TestRealSystem(_RealSystem)` class documentation