Model year check in Vin.verify_checksum() is now optional, on by def…

…ault (see #19).

CHANGELOG

@@ -2,6 +2,11 @@ vininfo changelog
 =================
 
 
+Unreleased
+----------
++ Model year check in Vin.verify_checksum() is now optional, on by default (see #19).
+
+
 v1.6.0 [2021-08-30]
 -------------------
 + WMI dict is updated.

tests/test_module.py

@@ -42,6 +42,11 @@ def test_checksum():
     # faked
     assert not Vin('1M8GDM9AyKP042788').verify_checksum()
 
+    # non strict
+    non_strict = Vin('WBA71DC010CH14720')
+    assert non_strict.verify_checksum(check_year=False)
+    assert not non_strict.verify_checksum()
+
 
 def test_unsupported_brand():
 
@@ -58,6 +63,7 @@ def test_merge_wmi():
     assert "    '1D': 'Dodge',\n    '1DTEST': 'Some'," in lines
     assert "    '1GT': 'GMC Truck',\n    '1GTEST': 'Other'," in lines
 
+
 def test_squish_vin():
      assert Vin('KF1SF08WJ8B257338').squish_vin == 'KF1SF08W8B'
 

vininfo/toolbox.py

@@ -53,13 +53,16 @@ def validate(self, num: str) -> str:
 
         return num
 
-    def verify_checksum(self) -> bool:
+    def verify_checksum(self, *, check_year: bool = True) -> bool:
         """Performs checksum verification.
 
         .. warning:: Not every manufacturer uses VIN checksum rules.
 
+        :param check_year: Whether to also check the model year.
+            Defaults to False since not all manufacturer abey the rule.
+
         """
-        if self.vis[0] in {'U', 'Z', '0'}:
+        if check_year and self.vis[0] in {'U', 'Z', '0'}:
             return False
 
         trans = {