Overcome autosubmit issue with requirement repetition.

templates/common/build_python_environment.sh

@@ -58,7 +58,14 @@ requirements="%python_environment.requirements%"
 # Convert list with python format to a bash array
 requirements=($( echo ${requirements} | sed "s/'//g" | tr -d '[],'))
 
+#TODO: Shouldn't be necessary but it is for now to overcome an issue with a repetition of the requirements.
+# Use sort and uniq to get the unique elements
+unique_requirements=($(printf "%s\n" "${requirements[@]}" | sort -u))
+
+# Print the unique elements
+echo "${unique_requirements[@]}"
+
 # Install requirements.
-for requirement in ${requirements[@]} ; do
+for requirement in ${unique_requirements[@]} ; do
   python -m pip install ${requirement}
 done