Hi Rich,

Ok something weird going on there, you might like to reinstall python3

I just checked my default install and I have this...

timt@metoffice:~$ pip3 freeze|grep serial
pyserial==3.4
timt@metoffice:~$

You might like to try ...

sudo apt reinstall python3

to see if that fixes things.

cheers

Tim

On 12/10/20 4:40 pm, Rich Painter wrote:
Tim, Greg,

clean install of ubuntu mate 20.04.1 LTS Desktop, including dev tools. ssh, no apache
this installs by default python3:
Python 3.8.5  (default, Jul 28 2020, 12:59:40)
[GCC 9.3.0] on linux

all updates were run prior to attempt with weewx. then followed
1. wget -qO - http://weewx.com/keys.html | sudo apt-key add -
2. wget -qO - http://weewx.com/apt/weewx.list | sudo tee /etc/apt/sources.list.d/weewx.list
3. apt-get update
4. apt-get install weewx

where step 4 had the reported failures.
 weewx : Depends: python-configobj (>= 4.5) but it is not installable
         Depends: python-serial (>= 2.3) but it is not installable

looking at the installed python3 components, apt reports in part:
python3-configobj/focal,focal,now 5.0.6-4 all [installed,automatic]

BUT NO python3-serial !!

So, why is the installer complaining about python-configobj when ver 5.0.6-4 clearly is >= 4.5 And why is python3-serial missing from the standard python (and apparently not installable) if it is required by weewx?

I'm a C and unix guy and know nothing about python....


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