Changed python (linked to python3) and sh (now linked to bash instead of dash) in the container.

my.Dockerfile

@@ -20,6 +20,11 @@ RUN apt-get update \
 RUN pip3 install PyFoam
 # Upgrade pip
 RUN pip3 install --upgrade pip
+# Link python to version 3
+RUN ln -s /usr/bin/python3 /usr/bin/python
+# Linking /bin/sh to bash instead of dash!!
+RUN mv /bin/sh /bin/sh.orig \
+    && ln -s /bin/bash /bin/sh
 
 # Håkan Nilsson's recommendations:
 # Uncomment as you wish (some have graphical interfaces)