diff --git a/tools/CrossStackProfiler/CspFileReader.py b/tools/CrossStackProfiler/CspFileReader.py
index bafe9a03efe013b8b9c7a084937783b1e2fa49b5..475da769936a772dd98f7a5fda663cabb7091eb6 100755
--- a/tools/CrossStackProfiler/CspFileReader.py
+++ b/tools/CrossStackProfiler/CspFileReader.py
@@ -100,7 +100,7 @@ class FileReader(object):
         self._logger.info(self._minTimeStamp)
 
     def _checkArgsKey(self, key, type):
-        if not self._args.has_key(key):
+        if key not in self._args:
             raise KeyError("args should has key [%s]!" % key)
 
         if not isinstance(self._args[key], type):
diff --git a/tools/CrossStackProfiler/ProfileFileReader.py b/tools/CrossStackProfiler/ProfileFileReader.py
index 628592a159f82c8cf1acc7ffb9b522be79558a46..6fb7d87fd47542920d0e166fb732fce9892a2e4e 100755
--- a/tools/CrossStackProfiler/ProfileFileReader.py
+++ b/tools/CrossStackProfiler/ProfileFileReader.py
@@ -60,10 +60,10 @@ class profileFileReader(FileReader):
 
     def _is_forwardBackwardInfo(self, items):
         if items["name"] == "marker/compute/MarkerCUDA":
-            if items.has_key("args"):
+            if "args" in items:
                 if isinstance(items["args"], dict):
                     args = items["args"]
-                    if args.has_key("detail_info"):
+                    if "detail_info" in args:
                         if args["detail_info"] == "marker_forward_B" or \
                            args["detail_info"] == "marker_forward_E" or \
                            args["detail_info"] == "marker_backward_B" or \