yeelightbt got error, is it due to phyton version2?

[hamwong]

I am lake of using phyton, please kindly advise

[14:46:21] openhabian@OpenhabianPi:/usr/local/bin$ yeelightbt
Traceback (most recent call last):
File "/usr/local/bin/yeelightbt", line 9, in
load_entry_point('python-yeelightbt==0.0.3.1', 'console_scripts', 'yeelightbt')()
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 356, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2476, in load_entry_point
return ep.load()
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2190, in load
['name'])
File "/usr/local/lib/python2.7/dist-packages/yeelightbt/init.py", line 2, in
from .lamp import Lamp
File "/usr/local/lib/python2.7/dist-packages/yeelightbt/lamp.py", line 192
def set_temperature(self, kelvin: int, brightness: int):
^
SyntaxError: invalid syntax

[hamwong]

my Python version Python 2.7.9 and Python 3.4.2

[rytilahti]

Yes, this library only supports python 3.4+. I'm unsure how you have been able to install it even on python2, as that should not be possible.

[hamwong]

do you know why I still got error when I use python3?
[18:18:02] openhabian@OpenhabianPi:~$ python3 --version
Python 3.4.2

[18:17:54] openhabian@OpenhabianPi:~$ python3 /usr/local/bin/yeelightbt --help
Traceback (most recent call last):
File "/usr/local/bin/yeelightbt", line 5, in
from pkg_resources import load_entry_point
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2876, in
working_set = WorkingSet._build_master()
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 449, in _build_master
ws.require(requires)
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 745, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 639, in resolve
raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: python-yeelightbt==0.0.3.1

[rytilahti]

You have to reinstall it for python3, now it's looking for the package under /usr/lib/python3, but I assume you have it only installed for python2.

[hamwong]

Hi, I did as you said uninstall the yeelightbt on 2.7 and reinstall on 3 as below and still got error after,
I try it on another raspberry which didn't install yeelightbt before, result still same, all on python 3.4.2

sudo pip3 install git+https://github.com/rytilahti/python-yeelightbt/
[sudo] password for openhabian:
Downloading/unpacking git+https://github.com/rytilahti/python-yeelightbt/
Cloning https://github.com/rytilahti/python-yeelightbt/ to /tmp/pip-yk5_83cw-build
Running setup.py (path:/tmp/pip-yk5_83cw-build/setup.py) egg_info for package from git+https://github.com/rytilahti/python-yeelightbt/
/usr/lib/python3.4/distutils/dist.py:260: UserWarning: Unknown distribution option: 'python_requires'
warnings.warn(msg)

Downloading/unpacking bluepy (from python-yeelightbt==0.0.3.1)
Downloading bluepy-1.2.0.tar.gz (509kB): 509kB downloaded
Running setup.py (path:/tmp/pip-build-m6h62321/bluepy/setup.py) egg_info for package bluepy

Downloading/unpacking construct (from python-yeelightbt==0.0.3.1)
Downloading construct-2.9.45.tar.gz (56kB): 56kB downloaded
Running setup.py (path:/tmp/pip-build-m6h62321/construct/setup.py) egg_info for package construct

Downloading/unpacking click (from python-yeelightbt==0.0.3.1)
Downloading Click-7.0-py2.py3-none-any.whl (81kB): 81kB downloaded
Installing collected packages: bluepy, construct, click, python-yeelightbt
Running setup.py install for bluepy
Working dir is /tmp/pip-build-m6h62321/bluepy
execute make -C ./bluepy clean
execute make -C bluepy -j1

Installing blescan script to /usr/local/bin
Installing sensortag script to /usr/local/bin
Installing thingy52 script to /usr/local/bin

Running setup.py install for construct

Running setup.py install for python-yeelightbt
/usr/lib/python3.4/distutils/dist.py:260: UserWarning: Unknown distribution option: 'python_requires'
warnings.warn(msg)

Installing yeelightbt script to /usr/local/bin

Successfully installed bluepy construct click python-yeelightbt
Cleaning up...

[21:53:17] openhabian@OpenhabianPi-Server:~$ yeelightbt --help
Traceback (most recent call last):
File "/usr/local/bin/yeelightbt", line 9, in
load_entry_point('python-yeelightbt==0.0.3.1', 'console_scripts', 'yeelightbt')()
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 356, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2476, in load_entry_point
return ep.load()
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2190, in load
['name'])
File "/usr/local/lib/python3.4/dist-packages/yeelightbt/init.py", line 2, in
from .lamp import Lamp
File "/usr/local/lib/python3.4/dist-packages/yeelightbt/lamp.py", line 7, in
from .structures import Request, Response, StateResult
File "/usr/local/lib/python3.4/dist-packages/yeelightbt/structures.py", line 4, in
from construct import (Struct, Int8ub, Int16ub, Const, Padded, Byte, Enum, Bytes, If, FlagsEnum,
ImportError: cannot import name 'SymmetricMapping'

[hamwong]

I found issue come from construct, currently using construct 2.9.45, after downgrade to 2.9.25, no errors and run well, don't know why

[rytilahti]

Yes, this codebase hasn't been upgraded to work with newer construct versions (#18).

[hamwong]

Pair fail with below info, do you know why?

sudo yeelightbt scan
Scanning for 5 seconds
Devices found:
Candela f8:24:41:c0:68:2a (yeelight_ms), rssi=-41
[01:41:13] openhabian@OpenhabianPi-Server:~$ sudo yeelightbt --mac f8:24:41:c0:68:2a
INFO:yeelightbt.connection:Requesting characteristics for uuid 8f65073d-9f57-4aaa-afea-397d19d5bbeb
INFO:yeelightbt.connection:Requesting characteristics for uuid aa7d3f34-2d4f-41e0-807f-52fbf8cf7443
Container:
type = PairingResult (total 13)
pairing_status = PairFailed (total 10)
Pairing failed, exiting

[rytilahti]

Did you press the button when the light was flashing during the pairing process?