Error: no such option --precision

[Hornet-C]

Hi, thanks for the great lib, but I get the Error:

w1thermsensor get 1 --precision 10 Error: no such option: --precision

Sensor details:

w1thermsensor ls Found 1 sensors:

1. HWID: 000008fdb09d Type: DS18B20

also

w1thermsensor get --hwid 000008fdb09d --type DS18B20 --precision 11

as well as the example code from python doesn't work for setting the precision.

System info:

raspberrypi 3 uname -a Linux raspberrypi 4.9.24-v7+ #993 SMP Wed Apr 26 18:01:23 BST 2017 armv7l GNU/Linux

[timofurrer]

What version of the package are you using? If you've installed the package via apt - The required changes are not deployed in the raspbian sources yet.

[Hornet-C]

well okay, I've taken the raspbian sources via apt install. I'll try the sources directly from the git repo. Thank you very much.

[Hornet-C]

Okay, the version from git seems to know the command, but I still get errors:

w1thermsensor get 1 --precision 11 Traceback (most recent call last): File "/usr/local/bin/w1thermsensor", line 9, in load_entry_point('w1thermsensor==0.4.1', 'console_scripts', 'w1thermsensor')() File "/usr/local/lib/python3.4/dist-packages/click/core.py", line 722, in call return self.main(args, kwargs) File "/usr/local/lib/python3.4/dist-packages/click/core.py", line 697, in main rv = self.invoke(ctx) File "/usr/local/lib/python3.4/dist-packages/click/core.py", line 1066, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/usr/local/lib/python3.4/dist-packages/click/core.py", line 895, in invoke return ctx.invoke(self.callback, ctx.params) File "/usr/local/lib/python3.4/dist-packages/click/core.py", line 535, in invoke return callback(args, *kwargs) File "/usr/local/lib/python3.4/dist-packages/w1thermsensor/cli.py", line 146, in get sensor.set_precision(precision, persist=False) File "/usr/local/lib/python3.4/dist-packages/w1thermsensor/core.py", line 292, in set_precision precision, self.sensorpath)) File "/usr/lib/python3.4/subprocess.py", line 537, in call with Popen(popenargs, **kwargs) as p: File "/usr/lib/python3.4/subprocess.py", line 859, in init restore_signals, start_new_session) File "/usr/lib/python3.4/subprocess.py", line 1457, in _execute_child raise child_exception_type(errno_num, err_msg) FileNotFoundError: [Errno 2] No such file or directory: 'echo 11 > /sys/bus/w1/devices/28-000008fdb09d/w1_slave'

The file exists:

cat /sys/bus/w1/devices/28-000008fdb09d/w1_slave bb 01 4b 46 7f ff 05 10 c6 : crc=c6 YES bb 01 4b 46 7f ff 05 10 c6 t=27687

[timofurrer]

What are the permissions on that file and with which user are you running the w1thermsensor process?

[Hornet-C]

ls -lh /sys/bus/w1/devices/28-000008fdb09d/w1_slave -rw-r--r-- 1 root root 4,0K Jun 1 17:58 /sys/bus/w1/devices/28-000008fdb09d/w1_slave

as user root.

I've installed the version after git clone ... with pip3 install .

[timofurrer]

I've just released a new version v0.4.2. You can also use pip directly instead of cloning the source first:

sudo pip3 install w1thermsensor -U

Can you try again?

[Hornet-C]

Thanks, works great now !

[timofurrer]

Awesome!

Thanks for the report! :beers: