msgfmt.py
with Python 2
RUN apt-get update && \
apt-get install -y mailman
RUN apt-get update && \
apt-get install -y mailman
RUN pacman -S --noconfirm mailman
RUN apt-get update && \
apt-get install -y mailman
RUN dnf install -y python2-tools
RUN apt-get update && \
apt-get install -y mailman