Fix conversion from python list to bash array.

templates/build_python_environment.sh

@@ -56,7 +56,7 @@ ln -sf $(which python3) ${WORKDIR}/python3
 requirements="%python_environment.requirements%"
 
 # Convert list with python format to a bash array
-requirements=($( echo ${requirements} | tr -d '[],'))
+requirements=($( echo ${requirements} | sed "s/'//g" | tr -d '[],'))
 
 # Install requirements.
 for requirement in ${requirements[@]} ; do