Replaced iso3166 with django-countries

This change ensures the country names in the CSVs match those displayed in Insights.

analytics_data_api/constants/country.py

-from iso3166 import Country
+"""
+This file holds constants and helper functions related to countries. All codes are assumed to be valid ISO 3166 country
+codes.
+"""
+from collections import namedtuple
+from django_countries import countries
+
+Country = namedtuple('Country', 'name, alpha2, alpha3, numeric')
 
 UNKNOWN_COUNTRY_CODE = u'UNKNOWN'
 UNKNOWN_COUNTRY = Country(UNKNOWN_COUNTRY_CODE, None, None, None)
+
+
+def _get_country_property(code, property_name):
+    return unicode(getattr(countries, property_name)(code))
+
+
+def get_country(code):
+    if not code:
+        return UNKNOWN_COUNTRY
+
+    name = _get_country_property(code, 'name')
+    if not name:
+        return UNKNOWN_COUNTRY
+
+    args = []
+    properties = ['alpha2', 'alpha3', 'numeric']
+    for property_name in properties:
+        args.append(_get_country_property(code, property_name))
+
+    return Country(name, *args)

analytics_data_api/tests.py

 from django.contrib.auth.models import User
 from django.core.management import call_command, CommandError
 from django.test import TestCase
-
 from django_dynamic_fixture import G
 from rest_framework.authtoken.models import Token
 
+from analytics_data_api.constants.country import get_country, UNKNOWN_COUNTRY
+
 from analytics_data_api.utils import delete_user_auth_token, set_user_auth_token
 
 
@@ -77,3 +78,16 @@ class SetApiKeyTests(TestCase):
         self.assertFalse(Token.objects.filter(user=user2).exists())
         call_command('set_api_key', user2.username, key)
         self.assertFalse(Token.objects.filter(user=user2).exists())
+
+
+class CountryTests(TestCase):
+    def test_get_country(self):
+        # Countries should be accessible 2 or 3 digit country code
+        self.assertEqual(get_country('US'), get_country('USA'))
+
+        # Use common name for Taiwan
+        self.assertEqual(get_country('TW').name, 'Taiwan')
+
+        # Return unknown country if code is invalid
+        self.assertEqual(get_country('A1'), UNKNOWN_COUNTRY)
+        self.assertEqual(get_country(None), UNKNOWN_COUNTRY)

analytics_data_api/v0/models.py

 from django.db import models
-from iso3166 import countries
 
 from analytics_data_api.constants import country, genders
 
@@ -120,11 +119,7 @@ class CourseEnrollmentByCountry(BaseCourseEnrollment):
         """
         Returns a Country object representing the country in this model's country_code.
         """
-        try:
-            return countries.get(self.country_code)
-        except (KeyError, ValueError, AttributeError):
-            # Country code is not valid ISO-3166
-            return country.UNKNOWN_COUNTRY
+        return country.get_country(self.country_code)
 
     class Meta(BaseCourseEnrollment.Meta):
         db_table = 'course_enrollment_location_current'

analytics_data_api/v0/tests/test_models.py

 from django.test import TestCase
 from django_dynamic_fixture import G
-from iso3166 import countries
 
 from analytics_data_api.v0 import models
-from analytics_data_api.constants.country import UNKNOWN_COUNTRY
+from analytics_data_api.constants.country import UNKNOWN_COUNTRY, get_country
 
 
 class CourseEnrollmentByCountryTests(TestCase):
     def test_country(self):
-        country = countries.get('US')
+        country = get_country('US')
         self.assertEqual(country.alpha2, 'US')
         instance = G(models.CourseEnrollmentByCountry, country_code=country.alpha2)
         self.assertEqual(instance.country, country)

analytics_data_api/v0/tests/test_views.py

@@ -10,9 +10,9 @@ import urllib
 
 from django.conf import settings
 from django_dynamic_fixture import G
-from iso3166 import countries
 import pytz
 from opaque_keys.edx.keys import CourseKey
+from analytics_data_api.constants.country import get_country
 
 from analytics_data_api.v0 import models
 from analytics_data_api.constants import country, enrollment_modes, genders
@@ -550,7 +550,7 @@ class CourseEnrollmentByLocationViewTests(CourseEnrollmentViewTestCaseMixin, Tes
 
     def setUp(self):
         super(CourseEnrollmentByLocationViewTests, self).setUp()
-        self.country = countries.get('US')
+        self.country = get_country('US')
         self.generate_data()
 
 

analyticsdataserver/settings/base.py

@@ -184,6 +184,7 @@ THIRD_PARTY_APPS = (
     'rest_framework',
     'rest_framework.authtoken',
     'rest_framework_swagger',
+    'django_countries',
 )
 
 LOCAL_APPS = (

requirements/base.txt

@@ -5,5 +5,5 @@ djangorestframework==2.4.4			# BSD
 ipython==2.1.0						# BSD
 django-rest-swagger==0.1.14 		# BSD
 djangorestframework-csv==1.3.3		# BSD
-iso3166==0.1 						# MIT
+django-countries==3.0.1             # MIT
 -e git+https://github.com/edx/opaque-keys.git@d45d0bd8d64c69531be69178b9505b5d38806ce0#egg=opaque-keys