File 001_pycountry.diff of Package trytond_country

diff --git a/country.py b/country.py
index ff5eceb4da725156b204060e9d1b9f26b89aa1c5..1e8e76671099672eb5baffd84dd6d1694f547de6 100644
--- a/country.py
+++ b/country.py
@@ -98,6 +98,7 @@ class Subdivision(DeactivableMixin, ModelSQL, ModelView):
     code = fields.Char('Code', required=True, select=True,
         help="The ISO code of the subdivision.")
     type = fields.Selection([
+        (None, ""),
         ('administration', 'Administration'),
         ('administrative area', 'Administrative area'),
         ('administrative atoll', 'Administrative atoll'),
@@ -202,7 +202,7 @@ class Subdivision(DeactivableMixin, ModelSQL, ModelView):
         ('unitary authority (england)', 'Unitary authority (england)'),
         ('unitary authority (wales)', 'Unitary authority (wales)'),
         ('zone', 'zone'),
-        ], 'Type', required=True)
+        ], "Type")
     parent = fields.Many2One('country.subdivision', 'Parent',
         domain=[
             ('country', '=', Eval('country', -1)),
@@ -224,10 +225,15 @@ class Subdivision(DeactivableMixin, ModelSQL, ModelView):
 
         super().__register__(module_name)
 
+        table_h = cls.__table_handler__(module_name)
+
         # Migration from 5.2: remove country data
         cursor.execute(*data.delete(where=(data.module == 'country')
                 & (data.model == cls.__name__)))
 
+        # Migration from 6.2: remove type required
+        table_h.not_null_action('type', action='remove')
+
     @classmethod
     def search_rec_name(cls, name, clause):
         if clause[1].startswith('!') or clause[1].startswith('not '):
diff --git a/scripts/import_countries.py b/scripts/import_countries.py
index 626e1ceee8c38496b83127d119709db6208a3bf6..85c5906581c2138ac720ab52927b3c054523543a 100755
--- a/scripts/import_countries.py
+++ b/scripts/import_countries.py
@@ -99,6 +99,8 @@ def update_subdivisions(countries, subdivisions):
     print("Update subdivisions", file=sys.stderr)
     Subdivision = Model.get('country.subdivision')
 
+    types = dict(Subdivision._fields['type']['selection'])
+    unknown_types = set()
     records = []
     for subdivision in _progress(pycountry.subdivisions):
         code = subdivision.code
@@ -108,7 +110,16 @@ def update_subdivisions(countries, subdivisions):
         else:
             record = Subdivision(code=code, country=countries[country_code])
         record.name = _remove_forbidden_chars(subdivision.name)
-        record.type = subdivision.type.lower()
+        type_ = subdivision.type.lower()
+        if type_ in types:
+            record.type = subdivision.type.lower()
+        else:
+            record.type = None
+            if type_ not in unknown_types:
+                print(
+                    "Unknown subdivision type: %s" % subdivision.type,
+                    file=sys.stderr)
+                unknown_types.add(type_)
         records.append(record)
 
     Subdivision.save(records)