{% if not_exist %}
This part is not displayed
{% for x in range(0,5) %}
--> loop inactive here {{ x }} and {{ x+1 }}
{% endfor %}
{% else %}
 active else {{ a_ident }}
{% for x in range(0,5) %}
--> loop here {{ x }} and {{ x+1 }}
{% endfor %}
{% endif %}
TOTO