can't list projects using ospurge

➜ ~ ospurge --dry-run --purge-project fbcc2bf8248e4db58cc09352b8918dc5
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/openstack/cloud/_identity.py", line 67, in list_projects
    '/{endpoint}'.format(endpoint=key), params=pushdown)
  File "/usr/local/lib/python3.7/site-packages/keystoneauth1/adapter.py", line 386, in get
    return self.request(url, 'GET', **kwargs)
  File "/usr/local/lib/python3.7/site-packages/openstack/proxy.py", line 529, in request
    return _json_response(response, error_message=error_message)
  File "/usr/local/lib/python3.7/site-packages/openstack/proxy.py", line 507, in _json_response
    exceptions.raise_from_response(response, error_message=error_message)
  File "/usr/local/lib/python3.7/site-packages/openstack/exceptions.py", line 229, in raise_from_response
    http_status=http_status, request_id=request_id
openstack.exceptions.HttpException: HttpException: 403: Client Error for url: http://10.10.51.20:5000/v3/projects, You are not authorized to perform the requested action: identity:list_projects.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/ospurge/main.py", line 115, in __init__
    project = self.cloud.get_project(options.purge_project)
  File "/usr/local/lib/python3.7/site-packages/openstack/cloud/_identity.py", line 99, in get_project
    domain_id=domain_id)
  File "/usr/local/lib/python3.7/site-packages/openstack/cloud/_utils.py", line 205, in _get_entity
    entities = search(name_or_id, filters, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/openstack/cloud/_identity.py", line 84, in search_projects
    domain_id=domain_id, name_or_id=name_or_id, filters=filters)
  File "/usr/local/lib/python3.7/site-packages/openstack/cloud/_identity.py", line 72, in list_projects
    raise exc.OpenStackCloudException(str(e))
openstack.exceptions.SDKException: HttpException: 403: Client Error for url: http://10.10.51.20:5000/v3/projects, You are not authorized to perform the requested action: identity:list_projects.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/bin/ospurge", line 10, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/site-packages/ospurge/main.py", line 237, in main
    creds_manager = CredentialsManager(options=options, config=cloud_config)
  File "/usr/local/lib/python3.7/site-packages/ospurge/main.py", line 120, in __init__
    "Unable to find project '{}'".format(options.purge_project)
ospurge.exceptions.OSProjectNotFound: Unable to find project 'fbcc2bf8248e4db58cc09352b8918dc5'
➜ ~ openstack project list
+----------------------------------+---------------+
| ID | Name |
+----------------------------------+---------------+
| 3fa0011f6e6c4c14a597b20bb8b057f2 | demo-nik |
| 531b481b75094210b1aa0e3d4f155a20 | ybcs-test |
| 556af0af373547c49c4365d65e5d4381 | demo-david |
| bc34bf8f138746ad8bfd047fc6e4b5d6 | demo-pavlos-2 |
| c3ba6570e6944685baa5c91c3c414605 | demo-david2 |
| fbcc2bf8248e4db58cc09352b8918dc5 | nik-purge |
+----------------------------------+---------------+

Using the version from commit 990287677b