How to auto fill latitude and longitude fields in Django2.0.6?

[PrateekG]

I'll install this Django app to see how it works.

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What is the content of location field when you try to add a new Place from the admin/ site?

I am able to make it works. There was some db data issue. My update code is as below-
models.py:

class Store(models.Model):
    postal_code = models.CharField(max_length=6)
    address = models.TextField()
    location = PlainLocationField(based_fields=['address'], zoom=7, null=True)
    phone = models.CharField(max_length=60, blank=True, null=True)
    latitude = models.FloatField()
    longitude = models.FloatField()
    class Meta:
        managed = False
        db_table = 'store'

admin.py:
class StoreAdmin(admin.ModelAdmin):
list_display = ('postal_code', 'address','phone', 'latitude', 'longitude')

So once user entered the address, location is auto filled with the values of latitude,longitude.

Since I have separate fields for storing latitude/longitude; I want to fetch their values from the location field and put them in respective fields.
How can I do that with some Python function?