Fix zeroth in Dutch to nulde fixing #325

num2words/lang_NL.py

@@ -76,7 +76,10 @@ class Num2Word_NL(Num2Word_EU):
                              "zes", "vijf", "vier", "drie", "twee", "één",
                              "nul"]
 
-        self.ords = {"één": "eerst",
+        # Wiktionary says it is "nulde", not "nulte" or "nule"
+        # https://en.wiktionary.org/wiki/nulde
+        self.ords = {"nul": "nuld",
+                     "één": "eerst",
                      "twee": "tweed",
                      "drie": "derd",
                      "vier": "vierd",

tests/test_nl.py

@@ -36,6 +36,7 @@ class Num2WordsNLTest(TestCase):
         )
 
     def test_ordinal_at_crucial_number(self):
+        self.assertEqual(num2words(0, ordinal=True, lang='nl'), "nulde")
         self.assertEqual(num2words(100, ordinal=True, lang='nl'), "honderdste")
         self.assertEqual(
             num2words(1000, ordinal=True, lang='nl'), "duizendste"