The file /etc/default/weewx controls which version of Python to use. Look in there.
However, it will not work unless the Python 3 prerequisites have been installed. If they have not, then you are better off following the instructions in the WeeWX Debian guide <http://www.weewx.com/docs/debian.htm>: wget -qO - https://weewx.com/apt/weewx-python3.list | sudo tee /etc/apt/sources.list.d/weewx.list sudo apt-get update sudo apt-get install weewx On Wed, Jan 20, 2021 at 3:59 AM 'Rene' via weewx-user < weewx-user@googlegroups.com> wrote: > Just to add that Python 3 works: > > root@brix:~# python3 --version > Python 3.6.9 > > Rene schrieb am Mittwoch, 20. Januar 2021 um 12:56:27 UTC+1: > >> Hi all, >> I'm running weewx 4.3.0 and it still uses Python 2.7 although I have >> installed Python 3 and /usr/bin/weewxd contains: >> >> #!/bin/sh >> app=weewxd >> >> # Get the weewx location and interpreter. Default to something sane, but >> # look for overrides from the system defaults. >> WEEWX_BINDIR=/home/weewx/bin >> WEEWX_PYTHON=python3 >> [ -r /etc/default/weewx ] && . /etc/default/weewx >> $WEEWX_PYTHON $WEEWX_BINDIR/$app $* >> >> From syslog: >> >> Jan 20 12:47:42 brix systemd[1]: Starting weewx weather system... >> Jan 20 12:47:42 brix weewx[26249] INFO __main__: Initializing weewx >> version 4.3.0 >> Jan 20 12:47:42 brix weewx[26249] INFO __main__: Using Python 2.7.17 >> (default, Sep 30 2020, 13:38:04) #012[GCC 7.5.0] >> Jan 20 12:47:42 brix weewx[26249] INFO __main__: Platform >> Linux-4.15.0-130-generic-x86_64-with-Ubuntu-18.04-bionic >> Jan 20 12:47:42 brix weewx[26249] INFO __main__: Locale is 'de_DE.UTF-8' >> Jan 20 12:47:42 brix weewx[26249] INFO __main__: PID file is >> /var/run/weewx.pid >> Jan 20 12:47:42 brix weewx[26257] INFO __main__: Using configuration file >> /etc/weewx/weewx.conf >> Jan 20 12:47:42 brix weewx[26257] INFO __main__: Debug is 0 >> >> I was looking into the logs because on January 5th weewx stopped >> generating reports. It runs fine otherwise, uploads data to WU and sends >> data with MQTT but no more reports. I think it was the day when I upgraded >> weewx from 4.2.0 to 4.3.0 and wanted to try now if Python 3 fixes the >> issue. There are no errors from weewx in the log. >> > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-user+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/8982f04c-da2d-4c3f-9686-f06bde9fe16an%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/8982f04c-da2d-4c3f-9686-f06bde9fe16an%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEDTTGHUkr62W2AnT5J9pTaaVEWUey2gz_6EQYQha%2Bwy-Q%40mail.gmail.com.
