Zato

The next generation ESB and application server. Open-source. In Python.

https://zato.io/docs/index.html

Installation on Debian Wheezy

su
mkdir -p /opt/Zato
cd /opt/Zato
wget https://zato.io/download/zato-1.1.tar.bz2 --no-check-certificate
tar xvjf zato-1.1.tar.bz2
cd zato-1.1
wget https://zato.io/hotfixes/hotfixman.sh --no-check-certificate
bash hotfixman.sh
./install.sh