Update oslo-incubator apiclient module

Changes -
 * pep8: fixed multiple violations
 * Restore UUID and human-ID bash completion
 * Don't slugify names that don't exist

Change-Id: I56ae5d529359584ad9576cfc2102996277101db1

saharaclient/openstack/common/apiclient/base.py

@@ -32,6 +32,7 @@ from six.moves.urllib import parse
 from saharaclient.openstack.common.apiclient import exceptions
 from saharaclient.openstack.common.gettextutils import _
 from saharaclient.openstack.common import strutils
+from saharaclient.openstack.common import uuidutils
 
 
 def getid(obj):
@@ -436,6 +437,21 @@ class Resource(object):
         self._info = info
         self._add_details(info)
         self._loaded = loaded
+        self._init_completion_cache()
+
+    def _init_completion_cache(self):
+        cache_write = getattr(self.manager, 'write_to_completion_cache', None)
+        if not cache_write:
+            return
+
+        # NOTE(sirp): ensure `id` is already present because if it isn't we'll
+        # enter an infinite loop of __getattr__ -> get -> __init__ ->
+        # __getattr__ -> ...
+        if 'id' in self.__dict__ and uuidutils.is_uuid_like(self.id):
+            cache_write('uuid', self.id)
+
+        if self.human_id:
+            cache_write('human_id', self.human_id)
 
     def __repr__(self):
         reprkeys = sorted(k
@@ -448,8 +464,10 @@ class Resource(object):
     def human_id(self):
         """Human-readable ID which can be used for bash completion.
         """
-        if self.NAME_ATTR in self.__dict__ and self.HUMAN_ID:
-            return strutils.to_slug(getattr(self, self.NAME_ATTR))
+        if self.HUMAN_ID:
+            name = getattr(self, self.NAME_ATTR, None)
+            if name is not None:
+                return strutils.to_slug(name)
         return None
 
     def _add_details(self, info):
@@ -463,7 +481,7 @@ class Resource(object):
 
     def __getattr__(self, k):
         if k not in self.__dict__:
-            #NOTE(bcwaldon): disallow lazy-loading if already loaded once
+            # NOTE(bcwaldon): disallow lazy-loading if already loaded once
             if not self.is_loaded():
                 self.get()
                 return self.__getattr__(k)

saharaclient/openstack/common/apiclient/fake_client.py

@@ -79,7 +79,7 @@ class FakeHTTPClient(client.HTTPClient):
     def __init__(self, *args, **kwargs):
         self.callstack = []
         self.fixtures = kwargs.pop("fixtures", None) or {}
-        if not args and not "auth_plugin" in kwargs:
+        if not args and "auth_plugin" not in kwargs:
             args = (None, )
         super(FakeHTTPClient, self).__init__(*args, **kwargs)