Remove six from Nexenta drivers

Change-Id: I3290fd411da511f276d4f592820e9a88df958472

cinder/tests/unit/volume/drivers/nexenta/test_nexenta5_jsonrpc.py

@@ -18,11 +18,11 @@ import copy
 import json
 import posixpath
 from unittest import mock
+import urllib
 import uuid
 
 from oslo_utils.secretutils import md5
 import requests
-import six
 
 from cinder.tests.unit import test
 from cinder.volume import configuration as conf
@@ -808,7 +808,7 @@ class TestNefCollections(test.TestCase):
     def test_path(self):
         path = 'path/to/item name + - & # $ = 0'
         result = self.instance.path(path)
-        quoted_path = six.moves.urllib.parse.quote_plus(path)
+        quoted_path = urllib.parse.quote_plus(path)
         expected = posixpath.join(self.instance.root, quoted_path)
         self.assertEqual(expected, result)
 
@@ -1184,9 +1184,7 @@ class TestNefProxy(test.TestCase):
         settings = {'value': guid}
         get_settings.return_value = settings
         self.assertIsNone(self.proxy.update_lock())
-        path = '%s:%s' % (guid, self.proxy.path)
-        if isinstance(path, six.text_type):
-            path = path.encode('utf-8')
+        path = ('%s:%s' % (guid, self.proxy.path)).encode('utf-8')
         expected = md5(path, usedforsecurity=False).hexdigest()
         self.assertEqual(expected, self.proxy.lock)
 

cinder/volume/drivers/nexenta/iscsi.py

@@ -14,7 +14,6 @@
 
 from oslo_log import log as logging
 from oslo_utils import excutils
-import six
 
 from cinder.common import constants
 from cinder import exception
@@ -225,7 +224,7 @@ class NexentaISCSIDriver(driver.ISCSIDriver):
         self.nms.zvol.create(
             self._get_zvol_name(volume['name']),
             '%sG' % (volume['size'],),
-            six.text_type(self.configuration.nexenta_blocksize),
+            str(self.configuration.nexenta_blocksize),
             self.configuration.nexenta_sparse)
 
     def extend_volume(self, volume, new_size):

cinder/volume/drivers/nexenta/nfs.py

@@ -21,7 +21,6 @@ from oslo_log import log as logging
 from oslo_utils import fileutils
 from oslo_utils.secretutils import md5
 from oslo_utils import units
-import six
 
 from cinder.common import constants
 from cinder import context
@@ -715,7 +714,7 @@ class NexentaNfsDriver(nfs.NfsDriver):
                               '%(count)d attempts.',
                               {'share': nfs_share,
                                'count': num_attempts})
-                    raise exception.NfsException(six.text_type(e))
+                    raise exception.NfsException(str(e))
                 LOG.warning(
                     'Mount attempt %(attempt)d failed: %(error)s. '
                     'Retrying mount ...',

cinder/volume/drivers/nexenta/ns5/iscsi.py

@@ -20,7 +20,6 @@ import uuid
 
 from oslo_log import log as logging
 from oslo_utils import units
-import six
 
 from cinder.common import constants
 from cinder import context
@@ -425,7 +424,7 @@ class NexentaISCSIDriver(driver.ISCSIDriver):
         host_addresses = []
         items = self.nef.netaddrs.list()
         for item in items:
-            ip_cidr = six.text_type(item['address'])
+            ip_cidr = str(item['address'])
             ip_addr, ip_mask = ip_cidr.split('/')
             ip_obj = ipaddress.ip_address(ip_addr)
             if not ip_obj.is_loopback:
@@ -1012,7 +1011,7 @@ class NexentaISCSIDriver(driver.ISCSIDriver):
         :returns: return True, if database entry with specified
                   snapshot id exists, otherwise return False
         """
-        if not isinstance(snapshot_id, six.string_types):
+        if not isinstance(snapshot_id, str):
             return False
         try:
             uuid.UUID(snapshot_id, version=4)

cinder/volume/drivers/nexenta/ns5/jsonrpc.py

@@ -15,12 +15,12 @@
 
 import json
 import posixpath
+import urllib
 
 from eventlet import greenthread
 from oslo_log import log as logging
 from oslo_utils.secretutils import md5
 import requests
-import six
 
 from cinder import exception
 from cinder.i18n import _
@@ -44,7 +44,7 @@ class NefException(exception.VolumeDriverException):
                     kwargs[key] = data[key]
                 else:
                     kwargs[key] = defaults[key]
-        elif isinstance(data, six.string_types):
+        elif isinstance(data, str):
             if 'message' not in kwargs:
                 kwargs['message'] = data
         for key in defaults:
@@ -328,7 +328,7 @@ class NefCollections(object):
         self.proxy = proxy
 
     def path(self, name):
-        quoted_name = six.moves.urllib.parse.quote_plus(name)
+        quoted_name = urllib.parse.quote_plus(name)
         return posixpath.join(self.root, quoted_name)
 
     def get(self, name, payload=None):
@@ -599,14 +599,14 @@ class NefProxy(object):
         prop = self.settings.get('system.guid')
         guid = prop.get('value')
         path = '%s:%s' % (guid, self.path)
-        if isinstance(path, six.text_type):
+        if isinstance(path, str):
             path = path.encode('utf-8')
         self.lock = md5(path, usedforsecurity=False).hexdigest()
 
     def url(self, path):
         netloc = '%s:%d' % (self.host, int(self.port))
         components = (self.scheme, netloc, str(path), None, None)
-        url = six.moves.urllib.parse.urlunsplit(components)
+        url = urllib.parse.urlunsplit(components)
         return url
 
     def delay(self, attempt):

cinder/volume/drivers/nexenta/ns5/nfs.py

@@ -21,7 +21,6 @@ import uuid
 from oslo_log import log as logging
 from oslo_utils.secretutils import md5
 from oslo_utils import units
-import six
 
 from cinder.common import constants
 from cinder import context
@@ -769,7 +768,7 @@ class NexentaNfsDriver(nfs.NfsDriver):
         :param volume: volume reference
         """
         share = self._get_volume_share(volume)
-        if isinstance(share, six.text_type):
+        if isinstance(share, str):
             share = share.encode('utf-8')
         path = md5(share, usedforsecurity=False).hexdigest()
         return os.path.join(self.mount_point_base, path)
@@ -913,7 +912,7 @@ class NexentaNfsDriver(nfs.NfsDriver):
         :returns: return True, if database entry with specified
                   snapshot id exists, otherwise return False
         """
-        if not isinstance(snapshot_id, six.string_types):
+        if not isinstance(snapshot_id, str):
             return False
         try:
             uuid.UUID(snapshot_id, version=4)

cinder/volume/drivers/nexenta/utils.py

@@ -14,10 +14,9 @@
 #    under the License.
 
 import re
+from urllib import parse as urlparse
 
 from oslo_utils import units
-import six
-import six.moves.urllib.parse as urlparse
 
 from cinder import exception
 from cinder.i18n import _
@@ -38,7 +37,7 @@ def str2size(s, scale=1024):
     if not s:
         return 0
 
-    if isinstance(s, six.integer_types):
+    if isinstance(s, int):
         return s
 
     match = re.match(r'^([\.\d]+)\s*([BbKkMmGgTtPpEeZzYy]?)', s)
@@ -67,13 +66,13 @@ def get_rrmgr_cmd(src, dst, compression=None, tcp_buf_size=None,
     """Returns rrmgr command for source and destination."""
     cmd = ['rrmgr', '-s', 'zfs']
     if compression:
-        cmd.extend(['-c', six.text_type(compression)])
+        cmd.extend(['-c', str(compression)])
     cmd.append('-q')
     cmd.append('-e')
     if tcp_buf_size:
-        cmd.extend(['-w', six.text_type(tcp_buf_size)])
+        cmd.extend(['-w', str(tcp_buf_size)])
     if connections:
-        cmd.extend(['-n', six.text_type(connections)])
+        cmd.extend(['-n', str(connections)])
     cmd.extend([src, dst])
     return ' '.join(cmd)