personalwebsite/aboutme/admin.py
def has_add_permission(self, request):
        """ 
        Allows the admin to only add a single entry for Introduction.
        """
        return Introduction.objects.all().count() == 0
 
        Allows the admin to only add a single entry for Introduction.
        
Allows the admin to only add a single entry for Introduction.
Allows the admin to only add a single entry for Introduction .
def has_add_permission(self, request):
        return Introduction.objects.all().count() == 0
def has_add_permission ( self , request ) : return Introduction . objects . all ( ) . count ( ) == 0
Allows the admin to only add a single entry for Introduction.
Allows the admin to only add a single entry for Introduction .
""" 
        Allows the admin to only add a single entry for Introduction.
        """
self
request