Remove unnecessary casts.

brunns · offbyone · commit 71acb723b3db · 2020-03-02T06:08:21.000-08:00
diff --git a/src/hamcrest/core/core/raises.py b/src/hamcrest/core/core/raises.py
@@ -39,7 +39,7 @@ def _call_function(self, function: Callable[..., Any]) -> bool:
         except BaseException:
             self.actual = sys.exc_info()[1]
 
-            if isinstance(self.actual, cast(type, self.expected)):
+            if isinstance(self.actual, self.expected):
                 if self.pattern is not None:
                     if re.search(self.pattern, str(self.actual)) is None:
                         return False
@@ -65,7 +65,7 @@ def describe_mismatch(self, item, description: Description) -> None:
 
         if self.actual is None:
             description.append_text("No exception raised.")
-        elif isinstance(self.actual, cast(type, self.expected)):
+        elif isinstance(self.actual, self.expected):
             if self.pattern is not None or self.matcher is not None:
                 description.append_text("Correct assertion type raised, but ")
                 if self.pattern is not None:
