how to extract field values in list from queryset in django

To extract field values in a list from a queryset in Django, you can follow these steps:

First, you need to retrieve the queryset. This can be done by using the model manager's methods such as .all(), .filter(), or .exclude(). For example, if you have a model called MyModel, you can retrieve the queryset like this: queryset = MyModel.objects.all().
Once you have the queryset, you can use the .values_list() method to extract the field values as a list. This method takes one or more field names as arguments and returns a list of tuples, where each tuple represents the field values of a single object. For example, to extract the field values of the name and age fields, you can do: field_values = queryset.values_list('name', 'age').
By default, the .values_list() method returns a list of tuples. If you want to extract the field values as a flat list, you can specify the flat=True parameter. For example, to extract just the name field values as a flat list, you can do: name_values = queryset.values_list('name', flat=True).
If you only want to extract the unique field values, you can chain the .distinct() method after the .values_list() method. This will remove any duplicate field values from the list. For example, to extract unique name field values, you can do: unique_names = queryset.values_list('name', flat=True).distinct().

That's it! Following these steps will allow you to extract field values in a list from a queryset in Django.