<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def date(objet):
 """ abstractRender d'une date datetime.date"""

        if objet:
            return "{}/{}/{}".format(objet.day, objet.month, objet.year)
        return ""