Start removing dependency on six (#178)

* url_helper: drop six

* url_helper: sort imports

* log: drop six

* log: sort imports

* handlers/__init__: drop six

* handlers/__init__: sort imports

* user_data: drop six

* user_data: sort imports

* sources/__init__: drop six

* sources/__init__: sort imports

* DataSourceOVF: drop six

* DataSourceOVF: sort imports

* sources/helpers/openstack: drop six

* sources/helpers/openstack: sort imports

* mergers/m_str: drop six

This also allowed simplification of the logic, as we will never
encounter a non-string text type.

* type_utils: drop six

* mergers/m_dict: drop six

* mergers/m_list: drop six

* cmd/query: drop six

* mergers/__init__: drop six

* net/cmdline: drop six

* reporting/handlers: drop six

* reporting/handlers: sort imports

1 files changed, 3 insertions, 6 deletions

diff --git a/cloudinit/handlers/__init__.py b/cloudinit/handlers/__init__.py
index 0db75af9..a409ff8a 100644
--- a/cloudinit/handlers/__init__.py
+++ b/cloudinit/handlers/__init__.py
@@ -10,14 +10,12 @@
 
 import abc
 import os
-import six
-
-from cloudinit.settings import (PER_ALWAYS, PER_INSTANCE, FREQUENCIES)
 
 from cloudinit import importer
 from cloudinit import log as logging
 from cloudinit import type_utils
 from cloudinit import util
+from cloudinit.settings import (PER_ALWAYS, PER_INSTANCE, FREQUENCIES)
 
 LOG = logging.getLogger(__name__)
 
@@ -60,8 +58,7 @@ INCLUSION_SRCH = sorted(list(INCLUSION_TYPES_MAP.keys()),
                         key=(lambda e: 0 - len(e)))
 
 
-@six.add_metaclass(abc.ABCMeta)
-class Handler(object):
+class Handler(metaclass=abc.ABCMeta):
 
     def __init__(self, frequency, version=2):
         self.handler_version = version
@@ -159,7 +156,7 @@ def _extract_first_or_bytes(blob, size):
     # Extract the first line or upto X symbols for text objects
     # Extract first X bytes for binary objects
     try:
-        if isinstance(blob, six.string_types):
+        if isinstance(blob, str):
             start = blob.split("\n", 1)[0]
         else:
             # We want to avoid decoding the whole blob (it might be huge)