Python Addition

adds python to the SA docker process.

Dockerfile

@@ -35,7 +35,11 @@ tzdata \
 unixodbc \
 unzip \
 wget \
-libidn11
+libidn11 \
+python3
+
+# set 'python' command to refer to python3
+RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 1
 
 RUN ln -fs /usr/share/zoneinfo/$TZ /etc/localtime \
 && dpkg-reconfigure -f noninteractive tzdata