Description of problem:

Needs to have error handling when you run repo delete on empty repo-id

Version-Release number of selected component (if applicable):

[root@pulp-candidate ~]# rpm -q pulp-rpm-server
pulp-rpm-server-2.0.1-1.fc17.noarch
[root@pulp-candidate ~]# 

How reproducible:


Steps to Reproduce:
1. [root@pulp-candidate ~]# pulp-admin repo delete --repo-id=
An unexpected error has occurred. More information can be found in the client
log file ~/.pulp/admin.log.


2.
3.
  
Actual results:


Expected results:


Additional info:

2012-08-28 13:44:11,099 - ERROR - Client-side exception occurred
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/pulp/client/extensions/core.py", line 475, in run
    exit_code = Cli.run(self, args)
  File "/usr/lib/python2.7/site-packages/okaara/cli.py", line 891, in run
    exit_code = command_or_section.execute(self.prompt, remaining_args)
  File "/usr/lib/python2.7/site-packages/okaara/cli.py", line 184, in execute
    return self.method(*arg_list, **clean_kwargs)
  File "/usr/lib/pulp/admin/extensions/rpm_repo/pulp_cli.py", line 180, in delete
    response = self.context.server.repo.delete(repo_id)
  File "/usr/lib/python2.7/site-packages/pulp/bindings/repository.py", line 87, in delete
    return self.server.DELETE(path)
  File "/usr/lib/python2.7/site-packages/pulp/bindings/server.py", line 78, in DELETE
    return self._request('DELETE', path, body=body)
  File "/usr/lib/python2.7/site-packages/pulp/bindings/server.py", line 134, in _request
    self._handle_exceptions(response_code, response_body)
  File "/usr/lib/python2.7/site-packages/pulp/bindings/server.py", line 153, in _handle_exceptions
    raise exceptions.PulpServerException(response_body)
  File "/usr/lib/python2.7/site-packages/pulp/bindings/exceptions.py", line 28, in __init__
    self.href = response_body.pop('_href', None)
AttributeError: 'str' object has no attribute 'pop'