Do not use the six library.

Change-Id: I3dbfcfa0f5f590a41ed549afd44537d8ed41433a

17 files changed, 57 insertions, 147 deletions

diff --git a/glanceclient/common/http.py b/glanceclient/common/http.py
index 6973f60..76ad0c3 100644
--- a/glanceclient/common/http.py
+++ b/glanceclient/common/http.py
@@ -14,6 +14,7 @@
 #    under the License.
 
 import copy
+import io
 import logging
 import socket
 
@@ -23,8 +24,7 @@ import OpenSSL
 from oslo_utils import importutils
 from oslo_utils import netutils
 import requests
-import six
-import six.moves.urllib.parse as urlparse
+import urllib.parse
 
 try:
     import json
@@ -66,19 +66,13 @@ def encode_headers(headers):
     for h, v in headers.items():
         if v is not None:
             # if the item is token, do not quote '+' as well.
-            # NOTE(imacdonn): urlparse.quote() is intended for quoting the
+            # NOTE(imacdonn): urllib.parse.quote() is intended for quoting the
             # path part of a URL, but headers like x-image-meta-location
             # include an entire URL. We should avoid encoding the colon in
             # this case (bug #1788942)
             safe = '=+/' if h in TOKEN_HEADERS else '/:'
-            if six.PY2:
-                # incoming items may be unicode, so get them into something
-                # the py2 version of urllib can handle before percent encoding
-                key = urlparse.quote(encodeutils.safe_encode(h), safe)
-                value = urlparse.quote(encodeutils.safe_encode(v), safe)
-            else:
-                key = urlparse.quote(h, safe)
-                value = urlparse.quote(v, safe)
+            key = urllib.parse.quote(h, safe)
+            value = urllib.parse.quote(v, safe)
             encoded_dict[key] = value
     return dict((encodeutils.safe_encode(h, encoding='ascii'),
                  encodeutils.safe_encode(v, encoding='ascii'))
@@ -105,7 +99,7 @@ class _BaseHTTPClient(object):
         # NOTE(jamielennox): remove this later. Managers should pass json= if
         # they want to send json data.
         data = kwargs.pop("data", None)
-        if data is not None and not isinstance(data, six.string_types):
+        if data is not None and not isinstance(data, str):
             try:
                 data = json.dumps(data)
                 content_type = 'application/json'
@@ -143,7 +137,7 @@ class _BaseHTTPClient(object):
                 # response encoding
                 body_iter = resp.json()
             else:
-                body_iter = six.StringIO(content)
+                body_iter = io.StringIO(content)
                 try:
                     body_iter = json.loads(''.join([c for c in body_iter]))
                 except ValueError:
@@ -209,13 +203,13 @@ class HTTPClient(_BaseHTTPClient):
         if not self.session.verify:
             curl.append('-k')
         else:
-            if isinstance(self.session.verify, six.string_types):
+            if isinstance(self.session.verify, str):
                 curl.append(' --cacert %s' % self.session.verify)
 
         if self.session.cert:
             curl.append(' --cert %s --key %s' % self.session.cert)
 
-        if data and isinstance(data, six.string_types):
+        if data and isinstance(data, str):
             curl.append('-d \'%s\'' % data)
 
         curl.append(url)
diff --git a/glanceclient/common/https.py b/glanceclient/common/https.py
index deb7eb0..94aeeb3 100644
--- a/glanceclient/common/https.py
+++ b/glanceclient/common/https.py
@@ -20,10 +20,6 @@ import struct
 import OpenSSL
 
 
-import six
-# NOTE(jokke): simplified transition to py3, behaves like py2 xrange
-from six.moves import range
-
 try:
     from eventlet import patcher
     # Handle case where we are running in a monkey patched environment
@@ -33,9 +29,9 @@ try:
     else:
         raise ImportError
 except ImportError:
+    import http.client
     from OpenSSL import SSL
-    from six.moves import http_client
-    HTTPSConnection = http_client.HTTPSConnection
+    HTTPSConnection = http.client.HTTPSConnection
     Connection = SSL.Connection
 
 
@@ -120,8 +116,8 @@ def host_matches_cert(host, x509):
 
 
 def to_bytes(s):
-    if isinstance(s, six.string_types):
-        return six.b(s)
+    if isinstance(s, str):
+        return bytes(s, 'latin-1')
     else:
         return s
 
@@ -161,14 +157,7 @@ class VerifiedHTTPSConnection(HTTPSConnection):
                  ssl_compression=True):
         # List of exceptions reported by Python3 instead of
         # SSLConfigurationError
-        if six.PY3:
-            excp_lst = (TypeError, FileNotFoundError, ssl.SSLError)
-        else:
-            # NOTE(jamespage)
-            # Accommodate changes in behaviour for pep-0467, introduced
-            # in python 2.7.9.
-            # https://github.com/python/peps/blob/master/pep-0476.txt
-            excp_lst = (TypeError, IOError, ssl.SSLError)
+        excp_lst = (TypeError, FileNotFoundError, ssl.SSLError)
         try:
             HTTPSConnection.__init__(self, host, port,
                                      key_file=key_file,
diff --git a/glanceclient/common/progressbar.py b/glanceclient/common/progressbar.py
index 6cf0df3..bb8b21b 100644
--- a/glanceclient/common/progressbar.py
+++ b/glanceclient/common/progressbar.py
@@ -15,8 +15,6 @@
 
 import sys
 
-import six
-
 
 class _ProgressBarBase(object):
     """A progress bar provider for a wrapped obect.
@@ -83,7 +81,7 @@ class VerboseIteratorWrapper(_ProgressBarBase):
 
     def next(self):
         try:
-            data = six.next(self._wrapped)
+            data = next(self._wrapped)
             # NOTE(mouad): Assuming that data is a string b/c otherwise calling
             # len function will not make any sense.
             self._display_progress_bar(len(data))
diff --git a/glanceclient/common/utils.py b/glanceclient/common/utils.py
index 0fde763..20256b8 100644
--- a/glanceclient/common/utils.py
+++ b/glanceclient/common/utils.py
@@ -21,12 +21,11 @@ import hashlib
 import json
 import os
 import re
-import six.moves.urllib.parse as urlparse
 import sys
 import threading
+import urllib.parse
 import uuid
 
-import six
 
 if os.name == 'nt':  # noqa
     import msvcrt  # noqa
@@ -161,7 +160,7 @@ def schema_args(schema_getter, omit=None):
                     # for the `join` to succeed. Enum types can also be `None`
                     # therefore, join's call would fail without the following
                     # list comprehension
-                    vals = [six.text_type(val) for val in property.get('enum')]
+                    vals = [str(val) for val in property.get('enum')]
                     description += ('Valid values: ' + ', '.join(vals))
                 kwargs['help'] = description
 
@@ -216,8 +215,6 @@ def print_list(objs, fields, formatters=None, field_settings=None):
 
 def _encode(src):
     """remove extra 'u' in PY2."""
-    if six.PY2 and isinstance(src, unicode):
-        return src.encode('utf-8')
     return src
 
 
@@ -345,7 +342,7 @@ def get_file_size(file_obj):
     :retval: The file's size or None if it cannot be determined.
     """
     if (hasattr(file_obj, 'seek') and hasattr(file_obj, 'tell') and
-            (six.PY2 or six.PY3 and file_obj.seekable())):
+            file_obj.seekable()):
         try:
             curr = file_obj.tell()
             file_obj.seek(0, os.SEEK_END)
@@ -401,13 +398,13 @@ def strip_version(endpoint):
     # we make endpoint the first argument. However, we
     # can't do that just yet because we need to keep
     # backwards compatibility.
-    if not isinstance(endpoint, six.string_types):
+    if not isinstance(endpoint, str):
         raise ValueError("Expected endpoint")
 
     version = None
     # Get rid of trailing '/' if present
     endpoint = endpoint.rstrip('/')
-    url_parts = urlparse.urlparse(endpoint)
+    url_parts = urllib.parse.urlparse(endpoint)
     (scheme, netloc, path, __, __, __) = url_parts
     path = path.lstrip('/')
     # regex to match 'v1' or 'v2.0' etc
@@ -446,8 +443,8 @@ def integrity_iter(iter, checksum):
 
     for chunk in iter:
         yield chunk
-        if isinstance(chunk, six.string_types):
-            chunk = six.b(chunk)
+        if isinstance(chunk, str):
+            chunk = bytes(chunk, 'latin-1')
         md5sum.update(chunk)
     md5sum = md5sum.hexdigest()
     if md5sum != checksum:
@@ -466,8 +463,8 @@ def serious_integrity_iter(iter, hasher, hash_value):
     """
     for chunk in iter:
         yield chunk
-        if isinstance(chunk, six.string_types):
-            chunk = six.b(chunk)
+        if isinstance(chunk, str):
+            chunk = bytes(chunk, 'latin-1')
         hasher.update(chunk)
     computed = hasher.hexdigest()
     if computed != hash_value:
diff --git a/glanceclient/exc.py b/glanceclient/exc.py
index eee47ca..5efe805 100644
--- a/glanceclient/exc.py
+++ b/glanceclient/exc.py
@@ -16,8 +16,6 @@
 import re
 import sys
 
-import six
-
 
 class BaseException(Exception):
     """An error occurred."""
@@ -179,8 +177,7 @@ def from_response(response, body=None):
         details = ': '.join(details_temp)
         return cls(details=details)
     elif body:
-        if six.PY3:
-            body = body.decode('utf-8')
+        body = body.decode('utf-8')
         details = body.replace('\n\n', '\n')
         return cls(details=details)
 
diff --git a/glanceclient/shell.py b/glanceclient/shell.py
index 3dfa14a..d0028fe 100644
--- a/glanceclient/shell.py
+++ b/glanceclient/shell.py
@@ -31,8 +31,7 @@ import traceback
 
 from oslo_utils import encodeutils
 from oslo_utils import importutils
-import six
-import six.moves.urllib.parse as urlparse
+import urllib.parse
 
 import glanceclient
 from glanceclient._i18n import _
@@ -259,7 +258,7 @@ class OpenStackImagesShell(object):
         except ks_exc.ClientException as e:
             # Identity service may not support discover API version.
             # Lets trying to figure out the API version from the original URL.
-            url_parts = urlparse.urlparse(auth_url)
+            url_parts = urllib.parse.urlparse(auth_url)
             (scheme, netloc, path, params, query, fragment) = url_parts
             path = path.lower()
             if path.startswith('/v3'):
@@ -522,12 +521,6 @@ class OpenStackImagesShell(object):
             self.do_help(options, parser=parser)
             return 0
 
-        # NOTE(sigmavirus24): Above, args is defined as the left over
-        # arguments from parser.parse_known_args(). This allows us to
-        # skip any parameters to command-line flags that may have been passed
-        # to glanceclient, e.g., --os-auth-token.
-        self._fixup_subcommand(args, argv)
-
         # short-circuit and deal with help command right away.
         sub_parser = _get_subparser(api_version)
         args = sub_parser.parse_args(argv)
@@ -598,33 +591,6 @@ class OpenStackImagesShell(object):
                 print("To display trace use next command:\n"
                       "osprofiler trace show --html %s " % trace_id)
 
-    @staticmethod
-    def _fixup_subcommand(unknown_args, argv):
-        # NOTE(sigmavirus24): Sometimes users pass the wrong subcommand name
-        # to glanceclient. If they're using Python 2 they will see an error:
-        # > invalid choice: u'imgae-list' (choose from ...)
-        # To avoid this, we look at the extra args already parsed from above
-        # and try to predict what the subcommand will be based on it being the
-        # first non - or -- prefixed argument in args. We then find that in
-        # argv and encode it from unicode so users don't see the pesky `u'`
-        # prefix.
-        for arg in unknown_args:
-            if not arg.startswith('-'):  # This will cover both - and --
-                subcommand_name = arg
-                break
-        else:
-            subcommand_name = ''
-
-        if (subcommand_name and six.PY2 and
-                isinstance(subcommand_name, six.text_type)):
-            # NOTE(sigmavirus24): if we found a subcommand name, then let's
-            # find it in the argv list and replace it with a bytes object
-            # instead. Note, that if we encode the argument on Python 3, the
-            # user will instead see a pesky `b'` string instead of the `u'`
-            # string we mention above.
-            subcommand_index = argv.index(subcommand_name)
-            argv[subcommand_index] = encodeutils.safe_encode(subcommand_name)
-
     @utils.arg('command', metavar='<subcommand>', nargs='?',
                help='Display help for <subcommand>.')
     def do_help(self, args, parser):
diff --git a/glanceclient/tests/unit/test_shell.py b/glanceclient/tests/unit/test_shell.py
index 4823224..74d1c33 100644
--- a/glanceclient/tests/unit/test_shell.py
+++ b/glanceclient/tests/unit/test_shell.py
@@ -160,27 +160,6 @@ class ShellTest(testutils.TestCase):
             sys.stderr = orig_stderr
         return (stdout, stderr)
 
-    def test_fixup_subcommand(self):
-        arglist = [u'image-list', u'--help']
-        expected_arglist = [u'image-list', u'--help']
-
-        openstack_shell.OpenStackImagesShell._fixup_subcommand(
-            arglist, arglist
-        )
-        self.assertEqual(expected_arglist, arglist)
-
-    def test_fixup_subcommand_with_options_preceding(self):
-        arglist = [u'--os-auth-token', u'abcdef', u'image-list', u'--help']
-        unknown = arglist[2:]
-        expected_arglist = [
-            u'--os-auth-token', u'abcdef', u'image-list', u'--help'
-        ]
-
-        openstack_shell.OpenStackImagesShell._fixup_subcommand(
-            unknown, arglist
-        )
-        self.assertEqual(expected_arglist, arglist)
-
     def test_help_unknown_command(self):
         shell = openstack_shell.OpenStackImagesShell()
         argstr = '--os-image-api-version 2 help foofoo'
diff --git a/glanceclient/v1/apiclient/base.py b/glanceclient/v1/apiclient/base.py
index a12a8cc..165e6de 100644
--- a/glanceclient/v1/apiclient/base.py
+++ b/glanceclient/v1/apiclient/base.py
@@ -41,8 +41,7 @@ import abc
 import copy
 
 from oslo_utils import strutils
-import six
-from six.moves.urllib import parse
+import urllib.parse
 
 from glanceclient._i18n import _
 from glanceclient.v1.apiclient import exceptions
@@ -224,8 +223,7 @@ class BaseManager(HookableMixin):
         return self.client.delete(url)
 
 
-@six.add_metaclass(abc.ABCMeta)
-class ManagerWithFind(BaseManager):
+class ManagerWithFind(BaseManager, metaclass=abc.ABCMeta):
     """Manager with additional `find()`/`findall()` methods."""
 
     @abc.abstractmethod
@@ -350,10 +348,11 @@ class CrudManager(BaseManager):
         """
         kwargs = self._filter_kwargs(kwargs)
 
+        query = urllib.parse.urlencode(kwargs) if kwargs else '',
         return self._list(
             '%(base_url)s%(query)s' % {
                 'base_url': self.build_url(base_url=base_url, **kwargs),
-                'query': '?%s' % parse.urlencode(kwargs) if kwargs else '',
+                'query': '?%s' % query,
             },
             self.collection_key)
 
@@ -389,10 +388,11 @@ class CrudManager(BaseManager):
         """
         kwargs = self._filter_kwargs(kwargs)
 
+        query = urllib.parse.urlencode(kwargs) if kwargs else '',
         rl = self._list(
             '%(base_url)s%(query)s' % {
                 'base_url': self.build_url(base_url=base_url, **kwargs),
-                'query': '?%s' % parse.urlencode(kwargs) if kwargs else '',
+                'query': '?%s' % query,
             },
             self.collection_key)
         num = len(rl)
diff --git a/glanceclient/v1/apiclient/exceptions.py b/glanceclient/v1/apiclient/exceptions.py
index f3d778c..27b3eba 100644
--- a/glanceclient/v1/apiclient/exceptions.py
+++ b/glanceclient/v1/apiclient/exceptions.py
@@ -36,8 +36,6 @@ Exception definitions.
 import inspect
 import sys
 
-import six
-
 from glanceclient._i18n import _
 
 
@@ -461,7 +459,7 @@ def from_response(response, method, url):
                     kwargs["message"] = (error.get("message") or
                                          error.get("faultstring"))
                     kwargs["details"] = (error.get("details") or
-                                         six.text_type(body))
+                                         str(body))
     elif content_type.startswith("text/"):
         kwargs["details"] = getattr(response, 'text', '')
 
diff --git a/glanceclient/v1/apiclient/utils.py b/glanceclient/v1/apiclient/utils.py
index 814a37b..7d3e4e0 100644
--- a/glanceclient/v1/apiclient/utils.py
+++ b/glanceclient/v1/apiclient/utils.py
@@ -26,7 +26,6 @@
 
 from oslo_utils import encodeutils
 from oslo_utils import uuidutils
-import six
 
 from glanceclient._i18n import _
 from glanceclient.v1.apiclient import exceptions
@@ -52,10 +51,7 @@ def find_resource(manager, name_or_id, **find_args):
 
     # now try to get entity as uuid
     try:
-        if six.PY2:
-            tmp_id = encodeutils.safe_encode(name_or_id)
-        else:
-            tmp_id = encodeutils.safe_decode(name_or_id)
+        tmp_id = encodeutils.safe_decode(name_or_id)
 
         if uuidutils.is_uuid_like(tmp_id):
             return manager.get(tmp_id)
diff --git a/glanceclient/v1/images.py b/glanceclient/v1/images.py
index 966d45a..b8e2ee2 100644
--- a/glanceclient/v1/images.py
+++ b/glanceclient/v1/images.py
@@ -17,8 +17,7 @@ import copy
 
 from oslo_utils import encodeutils
 from oslo_utils import strutils
-import six
-import six.moves.urllib.parse as urlparse
+import urllib.parse
 
 from glanceclient.common import utils
 from glanceclient.v1.apiclient import base
@@ -101,7 +100,7 @@ class ImageManager(base.ManagerWithFind):
         # headers will be encoded later, before the
         # request is sent.
         def to_str(value):
-            if not isinstance(value, six.string_types):
+            if not isinstance(value, str):
                 return str(value)
             return value
 
@@ -129,7 +128,7 @@ class ImageManager(base.ManagerWithFind):
         """
         image_id = base.getid(image)
         resp, body = self.client.head('/v1/images/%s'
-                                      % urlparse.quote(str(image_id)))
+                                      % urllib.parse.quote(str(image_id)))
         meta = self._image_meta_from_headers(resp.headers)
         return_request_id = kwargs.get('return_req_id', None)
         if return_request_id is not None:
@@ -145,7 +144,7 @@ class ImageManager(base.ManagerWithFind):
         """
         image_id = base.getid(image)
         resp, body = self.client.get('/v1/images/%s'
-                                     % urlparse.quote(str(image_id)))
+                                     % urllib.parse.quote(str(image_id)))
         content_length = int(resp.headers.get('content-length', 0))
         checksum = resp.headers.get('x-image-meta-checksum', None)
         if do_checksum and checksum is not None:
@@ -225,7 +224,7 @@ class ImageManager(base.ManagerWithFind):
 
         def paginate(qp, return_request_id=None):
             for param, value in qp.items():
-                if isinstance(value, six.string_types):
+                if isinstance(value, str):
                     # Note(flaper87) Url encoding should
                     # be moved inside http utils, at least
                     # shouldn't be here.
@@ -234,7 +233,7 @@ class ImageManager(base.ManagerWithFind):
                     # trying to encode them
                     qp[param] = encodeutils.safe_decode(value)
 
-            url = '/v1/images/detail?%s' % urlparse.urlencode(qp)
+            url = '/v1/images/detail?%s' % urllib.parse.urlencode(qp)
             images, resp = self._list(url, "images")
 
             if return_request_id is not None:
diff --git a/glanceclient/v2/images.py b/glanceclient/v2/images.py
index b07eecc..341485d 100644
--- a/glanceclient/v2/images.py
+++ b/glanceclient/v2/images.py
@@ -17,8 +17,7 @@ import hashlib
 import json
 from oslo_utils import encodeutils
 from requests import codes
-import six
-from six.moves.urllib import parse
+import urllib.parse
 import warlock
 
 from glanceclient.common import utils
@@ -55,7 +54,7 @@ class Controller(object):
 
     @staticmethod
     def _wrap(value):
-        if isinstance(value, six.string_types):
+        if isinstance(value, str):
             return [value]
         return value
 
@@ -142,19 +141,19 @@ class Controller(object):
         tags_url_params = []
 
         for tag in tags:
-            if not isinstance(tag, six.string_types):
+            if not isinstance(tag, str):
                 raise exc.HTTPBadRequest("Invalid tag value %s" % tag)
 
             tags_url_params.append({'tag': encodeutils.safe_encode(tag)})
 
         for param, value in filters.items():
-            if isinstance(value, six.string_types):
+            if isinstance(value, str):
                 filters[param] = encodeutils.safe_encode(value)
 
-        url = '/v2/images?%s' % parse.urlencode(filters)
+        url = '/v2/images?%s' % urllib.parse.urlencode(filters)
 
         for param in tags_url_params:
-            url = '%s&%s' % (url, parse.urlencode(param))
+            url = '%s&%s' % (url, urllib.parse.urlencode(param))
 
         if 'sort' in kwargs:
             if 'sort_key' in kwargs or 'sort_dir' in kwargs:
@@ -178,7 +177,7 @@ class Controller(object):
             for dir in sort_dir:
                 url = '%s&sort_dir=%s' % (url, dir)
 
-        if isinstance(kwargs.get('marker'), six.string_types):
+        if isinstance(kwargs.get('marker'), str):
             url = '%s&marker=%s' % (url, kwargs['marker'])
 
         for image, resp in paginate(url, page_size, limit):
diff --git a/glanceclient/v2/metadefs.py b/glanceclient/v2/metadefs.py
index a6df87a..1b641ac 100644
--- a/glanceclient/v2/metadefs.py
+++ b/glanceclient/v2/metadefs.py
@@ -14,8 +14,7 @@
 #    under the License.
 
 from oslo_utils import encodeutils
-import six
-from six.moves.urllib import parse
+import urllib.parse
 import warlock
 
 from glanceclient.common import utils
@@ -89,7 +88,7 @@ class NamespaceController(object):
     @utils.add_req_id_to_object()
     def _get(self, namespace, header=None, **kwargs):
         """Get one namespace."""
-        query_params = parse.urlencode(kwargs)
+        query_params = urllib.parse.urlencode(kwargs)
         if kwargs:
             query_params = '?%s' % query_params
 
@@ -179,10 +178,10 @@ class NamespaceController(object):
         for param, value in filters.items():
             if isinstance(value, list):
                 filters[param] = encodeutils.safe_encode(','.join(value))
-            elif isinstance(value, six.string_types):
+            elif isinstance(value, str):
                 filters[param] = encodeutils.safe_encode(value)
 
-        url = '/v2/metadefs/namespaces?%s' % parse.urlencode(filters)
+        url = '/v2/metadefs/namespaces?%s' % urllib.parse.urlencode(filters)
 
         for namespace, resp in paginate(url):
             yield namespace, resp
diff --git a/glanceclient/v2/tasks.py b/glanceclient/v2/tasks.py
index 177c8bf..6649f4b 100644
--- a/glanceclient/v2/tasks.py
+++ b/glanceclient/v2/tasks.py
@@ -14,8 +14,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import urllib.parse
+
 from oslo_utils import encodeutils
-import six
 import warlock
 
 from glanceclient.common import utils
@@ -85,10 +86,10 @@ class Controller(object):
                                  % ', '.join(SORT_DIR_VALUES))
 
         for param, value in filters.items():
-            if isinstance(value, six.string_types):
+            if isinstance(value, str):
                 filters[param] = encodeutils.safe_encode(value)
 
-        url = '/v2/tasks?%s' % six.moves.urllib.parse.urlencode(filters)
+        url = '/v2/tasks?%s' % urllib.parse.urlencode(filters)
         for task, resp in paginate(url):
             # NOTE(flwang): remove 'self' for now until we have an elegant
             # way to pass it into the model constructor without conflict
diff --git a/lower-constraints.txt b/lower-constraints.txt
index d98e40b..6b4229e 100644
--- a/lower-constraints.txt
+++ b/lower-constraints.txt
@@ -60,7 +60,6 @@ requests-mock==1.2.0
 requests==2.14.2
 requestsexceptions==1.2.0
 rfc3986==0.3.1
-six==1.10.0
 snowballstemmer==1.2.1
 stestr==2.0.0
 stevedore==1.20.0
diff --git a/requirements.txt b/requirements.txt
index 25b670a..ca8abaf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,6 @@ PrettyTable<0.8,>=0.7.1 # BSD
 keystoneauth1>=3.6.2 # Apache-2.0
 requests>=2.14.2 # Apache-2.0
 warlock<2,>=1.2.0 # Apache-2.0
-six>=1.10.0 # MIT
 oslo.utils>=3.33.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
 wrapt>=1.7.0 # BSD License
diff --git a/tox.ini b/tox.ini
index f001df9..13238b1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -69,7 +69,7 @@ show-source = True
 exclude = .venv*,.tox,dist,*egg,build,.git,doc,*lib/python*,.update-venv
 
 [hacking]
-import_exceptions = six.moves,glanceclient._i18n
+import_exceptions = glanceclient._i18n
 
 [testenv:lower-constraints]
 basepython = python3