[PowerProfiler] Make sure correct version of pySerial is imported with monsoon profiler.

tools/telemetry/telemetry/core/util.py

Index: tools/telemetry/telemetry/core/util.py
diff --git a/tools/telemetry/telemetry/core/util.py b/tools/telemetry/telemetry/core/util.py
index efeab5aa7f8eaf6af6e20741002397a34ea5411d..f35f016d2d0881fba29b9d98a9d2b103b3eb2288 100644
--- a/tools/telemetry/telemetry/core/util.py
+++ b/tools/telemetry/telemetry/core/util.py
@@ -35,6 +35,12 @@ def GetUnittestDataDir():
 def GetChromiumSrcDir():
   return os.path.normpath(os.path.join(GetTelemetryDir(), os.pardir, os.pardir))
 
+def InsertDirInPythonPath(index, *path_parts):

[tonyg, 2014/06/09 16:13:35]

Dave should review this part. I wonder whether we should change
AddDirToPythonPath to always prepend instead of append.

[dtu, 2014/06/09 20:14:05]

+1 to this suggestion, we don't need an extra function for this.

+  path = os.path.abspath(os.path.join(*path_parts))
+  if os.path.isdir(path):
+    if path in sys.path:
+      sys.path.remove(path)
+    sys.path.insert(index, path)
 
 def AddDirToPythonPath(*path_parts):
   path = os.path.abspath(os.path.join(*path_parts))