Can't install light blue on macOS 11.5

[Zepp-lin]

lightblue-0.4 % sudo python setup.py install
Password:
running install
running build
running build_py
running install_lib
byte-compiling /Users/timothedesbordes/opt/anaconda3/lib/python3.8/site-packages/lightblue/_bluetoothsockets.py to _bluetoothsockets.cpython-38.pyc
File "/Users/timothedesbordes/opt/anaconda3/lib/python3.8/site-packages/lightblue/_bluetoothsockets.py", line 391
except _socket.error, err:
^
SyntaxError: invalid syntax

byte-compiling /Users/timothedesbordes/opt/anaconda3/lib/python3.8/site-packages/lightblue/_lightblue.py to _lightblue.cpython-38.pyc
File "/Users/timothedesbordes/opt/anaconda3/lib/python3.8/site-packages/lightblue/_lightblue.py", line 60
except _lightbluecommon.BluetoothError, e:
^
SyntaxError: invalid syntax

byte-compiling /Users/timothedesbordes/opt/anaconda3/lib/python3.8/site-packages/lightblue/_macutil.py to _macutil.cpython-38.pyc
File "/Users/timothedesbordes/opt/anaconda3/lib/python3.8/site-packages/lightblue/_macutil.py", line 43
kIOBluetoothServiceBrowserControllerOptionsNone = 0L
^
SyntaxError: invalid syntax

running install_egg_info
Removing /Users/timothedesbordes/opt/anaconda3/lib/python3.8/site-packages/lightblue-0.4-py3.8.egg-info
Writing /Users/timothedesbordes/opt/anaconda3/lib/python3.8/site-packages/lightblue-0.4-py3.8.egg-info
Command line invocation:
/Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild install -target LightAquaBlue -configuration Release DSTROOT=/ INSTALL_PATH=/Library/Frameworks DEPLOYMENT_LOCATION=YES

User defaults from command line:
IDEPackageSupportUseBuiltinSCM = YES

Build settings from command line:
DEPLOYMENT_LOCATION = YES
DSTROOT = /
INSTALL_PATH = /Library/Frameworks

note: Using new build system
note: Planning build
note: Analyzing workspace
note: Constructing build description
note: Build preparation complete
error: unable to find sdk '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.4u.sdk' (in target 'LightAquaBlue' from project 'LightAquaBlue')
warning: Traditional headermap style is no longer supported; please migrate to using separate headermaps and set 'ALWAYS_SEARCH_USER_PATHS' to NO. (in target 'LightAquaBlue' from project 'LightAquaBlue')

** INSTALL FAILED **

[yeSpud]

Try running with python2