The python packages were added to the mltistrap-base.conf. This file

will be used for building the image.

build_image.sh

@@ -1,7 +1,7 @@
 #!/bin/bash -ex
 mhamakedeb mahalia-dependencies.csv $(cat version) all
 sudo rm -rf /opt/multistrap/
-sudo multistrap -f multistrap-development.conf
+sudo multistrap -f multistrap-base.conf
 sudo cp preseed.conf configure_packages *.deb /opt/multistrap/
 sudo chroot /opt/multistrap/ /configure_packages
 sudo chroot /opt/multistrap dpkg -i *.deb

multistrap-base.conf

@@ -28,7 +28,7 @@ bootstrap=Buster BusterSecurity BusterUpdates HoerTech RCNEE
 # HoerTechDev
 
 [Buster]
-packages=alsa-utils apt-utils base-passwd bash bsdmainutils console-common cpio cpufrequtils dash debconf-i18n debconf-utils diffutils dmidecode dnsmasq e2fsprogs fake-hwclock findutils gdbm-l10n gnupg grep gzip hostapd hostname i2c-tools ifupdown init iptables iputils-ping isc-dhcp-client isc-dhcp-common jackd2 less locales logrotate mawk nano ncurses-base ncurses-bin netcat-openbsd npm ntp openssh-server psmisc readline-common rfkill rsyslog rt-tests sed sudo sysvinit-utils udev vim-tiny whois xz-utils whois
+packages=alsa-utils apt-utils base-passwd bash bsdmainutils console-common cpio cpufrequtils dash debconf-i18n debconf-utils diffutils dmidecode dnsmasq e2fsprogs fake-hwclock findutils gdbm-l10n gnupg grep gzip hostapd hostname i2c-tools ifupdown init iptables iputils-ping isc-dhcp-client isc-dhcp-common jackd2 less locales logrotate mawk nano ncurses-base ncurses-bin netcat-openbsd npm ntp openssh-server psmisc readline-common rfkill rsyslog rt-tests sed sudo sysvinit-utils udev vim-tiny whois xz-utils whois python3.7 python3-pip python3-bluez libbluetooth-dev
 source=http://ftp.de.debian.org/debian
 keyring=debian-archive-keyring
 suite=buster

multistrap-development.conf

@@ -29,7 +29,7 @@ bootstrap=Buster HoerTechDev
 
 
 [Buster]
-packages=python3.7 python3-pip python3-bluez libbluetooth-dev 
+packages= 
 source=http://ftp.de.debian.org/debian
 keyring=debian-archive-keyring
 suite=buster