def parent()

in pci_lib/pci_lib.py [0:0]

• 8 lines of code
• 2 McCabe index (conditional complexity)

    def parent(self):
        """
        Get this device's parent device.

        @return a PCIDevice, or None if this device is a top-level device
        """
        mypath = os.path.join(SYSFS_PCI_BUS_DEVICES, self.device_name)
        mypath = realpath(mypath)
        parentpath = realpath(os.path.join(mypath, '..'))
        parentdev = os.path.basename(parentpath)
        if not re.match(LONG_PCI_ADDR_REGEX, parentdev):
            return None
        return map_pci_device(parentdev)