Unhandled exception KeyError: 'e' appears when keystone fails to load config file.

[Yasuto Nishii]

When keyston is starting, KeyError: 'e' displays instead of the well formed error.

"keystone/common/config.py ": load_paste_app is trying to handle the exception but local value %(e) is not defined.
Then KeyError: 'e' occurs.

Just add 'e' after except works for me like this.
=> except (LookupError, ImportError), e:

-------------------------------------------------
except (LookupError, ImportError):
 raise RuntimeError("Unable to load %(app_name)s from "
                    "configuration file %(conf_file)s."
                    "\nGot: %(e)r" % locals())
-------------------------------------------------

[Dolph Mathews (dolph)]

Fixed in cc476c9d2a859aa8d541d5aa99752807f3fe443f