form to override autocomplete organization changed

app/admin.py

@@ -9,20 +9,25 @@ from django.http import HttpResponse
 import csv
 from django import forms
 from django.contrib.admin.widgets import AutocompleteSelect
-
 class autocomplete_fields_form(forms.ModelForm):
     """This form overrides autocomplete 
     organization field for Person class
     """
+    def __init__(self, *args, **kwargs):
+        super(autocomplete_fields_form, self).__init__(*args, **kwargs)
+
+        # self.fields['organization'].label = 'My new label'
+
+
     class Meta:
-        widgets = {
-            'my_field': AutocompleteSelect(
-                Person._meta.get_field('organization').remote_field,
-                admin.site,
-                attrs={'data-dropdown-auto-width': 'true'}
-            ),
+        model = Person
+        fields = '__all__'
+        widgets={
+            'organization': forms.Select(attrs={'style': 'width:750px'})
             }
 
+
+
 def download_csv(modeladmin, request, queryset):
     name     =  queryset[0].__class__.__name__
     response = HttpResponse()