divides  "import" statement in a url.py

url.py is used as template file,when "run_test.sh -m startpanel" is executed.

It is desirable to divide an "import" statement in a url.py beforehand.

Change-Id: Ibc50e3efbae0d2696d796516a1387633e06cc060
Closes-Bug: #1226427
Merge "divides  "import" statement in a url.py"