Log warning instead of raise error when pcan api is to old

Author: pkess

can/interfaces/pcan/pcan.py

@@ -322,7 +322,7 @@ def get_api_version(self):
     def check_api_version(self):
         apv = self.get_api_version()
         if apv < MIN_PCAN_API_VERSION:
-            raise CanInitializationError(
+            log.warning(
                 f"Minimum version of pcan api is {MIN_PCAN_API_VERSION}."
                 f" Installed version is {apv}. Consider upgrade of pcan basic package"
             )

test/test_pcan.py

@@ -66,9 +66,9 @@ def test_bus_creation_fd(self) -> None:
         self.mock_pcan.Initialize.assert_not_called()
         self.mock_pcan.InitializeFD.assert_called_once()
 
-    def test_api_version_error(self) -> None:
+    def test_api_version_low(self) -> None:
         self.PCAN_API_VERSION_SIM = "1.0"
-        with self.assertRaises(CanInitializationError):
+        with self.assertLogs('can.pcan', level='WARNING') as cm:
             self.bus = can.Bus(bustype="pcan")
 
     def test_api_version_read_fail(self) -> None: