Mailman (web) now only requires Python 3

[alexmtv]

Hello again! From lists: https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/47PG3ATNDHM5EYA5HSA5DZCYSFVCPPFY/#47PG3ATNDHM5EYA5HSA5DZCYSFVCPPFY

@iomarmochtar If I decide to update your script, where should I start? Move the list of Python 2 packages to Python 3? Remove all references to python 2 binary?

Thanks in advance!

[iomarmochtar]

thanks for the information @alexmtv ,

let me update the script, because previously django-mailman3 can be run only in python2.

[iomarmochtar]

You can try following command to upgrade all packages in environment mailman3_ext from python version 2.7 to 3.6 (while i'm updating/push new changes to this repo)

Assuming you are using centos version 7.

• Stop mailman3 webui and remove it.

  service mailman3_webui stop
  rm -f /etc/init.d/mailman3_webui

• Remove existing virtual env for mailman3_ext

  /opt/mailman3/conda/bin/conda remove --name mailman3_ext --all

• Reinstall with python 3

  /opt/mailman3/conda/bin/conda create --name mailman3_ext python=3 -y 

• Install all dependencies

  /opt/mailman3/conda/envs/mailman3_ext/bin/pip install Whoosh==2.7.4 libsass==0.14.5 postorius==1.2.0a1 hyperkitty==1.2.0a1 Django==1.11 django-mailman3==1.2.0a2 django-haystack==2.8.1 mailmanclient==3.2.0b1 waitress==1.1.0

• Apply any new migration from used django apps.

  /opt/mailman3/conda/envs/mailman3_ext/bin/python /opt/mailman3/webui/manage.py migrate

• Install supervisord from repository

  yum install supervisord

• Move all service script to system's supervisord

  cp /opt/mailman3/etc/supervisor/services/*.ini /etc/supervisord.d/

• Start the service which currently handled by system's supervisord

  systemctl start supervisord