How to use the cflib.crtp.scan_interfaces function in cflib

def scan(self, address):
        self.interfaceFoundSignal.emit(cflib.crtp.scan_interfaces(address))

def scan(self, address):
        self.interfaceFoundSignal.emit(cflib.crtp.scan_interfaces(address))

"""Callback when disconnected after a connection has been made (i.e
        Crazyflie moves out of range)"""
        print("Connection to %s lost: %s" % (link_uri, msg))

    def _disconnected(self, link_uri):
        """Callback when the Crazyflie is disconnected (called in all cases)"""
        print("Disconnected from %s" % link_uri)
        self.is_connected = False


if __name__ == '__main__':
    # Initialize the low-level drivers (don't list the debug drivers)
    cflib.crtp.init_drivers(enable_debug_driver=False)
    # Scan for Crazyflies and use the first one found
    print("Scanning interfaces for Crazyflies...")
    available = cflib.crtp.scan_interfaces()
    print("Crazyflies found:")
    for i in available:
        print(i[0])

    if len(available) > 0:
        le = LoggingExample(available[0][0])
    else:
        print("No Crazyflies found, cannot run example")
        sys.exit(1)

    # The Crazyflie lib doesn't contain anything to keep the application alive,
    # so this is where your application should do something. In our case we
    # are just waiting until we are disconnected.
    while le.is_connected:
        time.sleep(1)

#  MA  02110-1301, USA.

"""
Simple example that scans for available Crazyflies and lists them.
"""

import sys

sys.path.append("../src/cflib")
import cflib.crtp  # noqa

# Initiate the low level drivers
cflib.crtp.init_drivers(enable_debug_driver=False)

print("Scanning interfaces for Crazyflies...")
available = cflib.crtp.scan_interfaces()
print("Crazyflies found:")
for i in available:
    print(i[0])

def scan():
    """
    Scan for Crazyflie and return its URI.
    """

    # Initiate the low level drivers
    cflib.crtp.init_drivers(enable_debug_driver=False)

    # Scan for Crazyflies
    print('Scanning interfaces for Crazyflies...')
    available = cflib.crtp.scan_interfaces()
    interfaces = [uri for uri, _ in available]

    if not interfaces:
        return None
    return choose(interfaces, 'Crazyflies found:', 'Select interface: ')

def _handle_scanning(self):
        resp = {"version": 1}
        interfaces = cflib.crtp.scan_interfaces()
        resp["interfaces"] = []
        for i in interfaces:
            resp["interfaces"].append({"uri": i[0], "info": i[1]})
        return resp

"""Callback when disconnected after a connection has been made (i.e
        Crazyflie moves out of range)"""
        print("Connection to %s lost: %s" % (link_uri, msg))

    def _disconnected(self, link_uri):
        """Callback when the Crazyflie is disconnected (called in all cases)"""
        print("Disconnected from %s" % link_uri)
        self.is_connected = False


if __name__ == '__main__':
    # Initialize the low-level drivers (don't list the debug drivers)
    cflib.crtp.init_drivers(enable_debug_driver=False)
    # Scan for Crazyflies and use the first one found
    print("Scanning interfaces for Crazyflies...")
    available = cflib.crtp.scan_interfaces()
    print("Crazyflies found:")
    for i in available:
        print(i[0])

    if len(available) > 0:
        le = EEPROMExample(available[0][0])
    else:
        print("No Crazyflies found, cannot run example")

    # The Crazyflie lib doesn't contain anything to keep the application alive,
    # so this is where your application should do something. In our case we
    # are just waiting until we are disconnected.
    try:
        while le.is_connected:
            time.sleep(1)
    except KeyboardInterrupt:

if thrust >= 25000:
                thrust_mult = -1
            thrust += thrust_step * thrust_mult
        self._cf.commander.send_setpoint(0, 0, 0, 0)
        # Make sure that the last packet leaves before the link is closed
        # since the message queue is not flushed before closing
        time.sleep(0.1)
        self._cf.close_link()


if __name__ == '__main__':
    # Initialize the low-level drivers (don't list the debug drivers)
    cflib.crtp.init_drivers(enable_debug_driver=False)
    # Scan for Crazyflies and use the first one found
    print("Scanning interfaces for Crazyflies...")
    available = cflib.crtp.scan_interfaces()
    print("Crazyflies found:")
    for i in available:
        print(i[0])

    if len(available) > 0:
        le = MotorRampExample(available[0][0])
    else:
        print("No Crazyflies found, cannot run example")