bluetooth device inquiry

[anne]

Two "inquiry " - scan for nearby bluetooth devices and two different results.

Where is the logical error in the first usage of function
bluetooth.discover_devices ?

inquiry is basins BlueZ function and it takes time , which the first code does not monitors.
Is that it ?

I am asking for second opinion.

CODE

import bluetooth

print("scanning for near-by bluetooth devices....")

target_name = "My Phone"
target_address = None

nearby_devices = bluetooth.discover_devices()

for bdaddr in nearby_devices:
    if target_name == bluetooth.lookup_name( bdaddr ):
        target_address = bdaddr
        break

if target_address is not None:
    print ("found target bluetooth device with address "), target_address
else:
    print ("could not find target bluetooth device nearby")


import bluetooth 

print("Performing inquiry...")

nearby_devices = bluetooth.discover_devices(duration=8, lookup_names=True,
                                            flush_cache=True, lookup_class=False)

print("Found {} devices".format(len(nearby_devices)))

for addr, name in nearby_devices:
    try:
        print("   {} - {}".format(addr, name))
    except UnicodeEncodeError:
        print("   {} - {}".format(addr, name.encode("utf-8", "replace")))

Output

scanning for near-by bluetooth devices....
could not find target bluetooth device nearby
Performing inquiry...
Found 2 devices
98:D3:31:F8:39:33 - SPP-CA
B8:27:EB:11:3F:82 - ARM