This makes exception catching code which compares the code with
numeric values work as expected. pythonis not PHP and 500 != '500'.

BUG=none

Review URL: https://codereview.chromium.org/27260007

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@228788 0039d316-1c4b-4281-b951-d872f2087c98