Fix bug when trying to parse an integer in the 'Code' or 'code' part …

…of the response body

botocore/parsers.py

@@ -1316,12 +1316,11 @@ def _inject_error_code(self, error, response):
             code = response['headers']['x-amzn-errortype']
         elif 'code' in body or 'Code' in body:
             code = body.get('code', body.get('Code', ''))
-        if code is not None:
-            if ':' in code:
-                code = code.split(':', 1)[0]
-            if '#' in code:
-                code = code.rsplit('#', 1)[1]
-            error['Error']['Code'] = code
+        if code is None:
+            return
+        if isinstance(code, str):
+            code = code.split(':', 1)[0].rsplit('#', 1)[-1]
+        error['Error']['Code'] = code
 
     def _handle_boolean(self, shape, value):
         return ensure_boolean(value)