* old style raise --> raise() for Python 3
* old style exception --> new style for Python 3
* old style exception --> new style for Python 3
* old style exception --> new style for Python 3
* old style exception --> new style for Python 3
* old style exception --> new style for Python 3
* old style exception --> new style for Python 3
* old style exception --> new style for Python 3
* old style exception --> new style for Python 3
* old style exception --> new style for Python 3
* old style raise --> raise() for Python 3
* old style raise --> raise() for Python 3
* old style exception, raise --> new style for Python 3