Remove six support

This update is to remove six support for dropping python2 from
heat-translator. Only the example of dockerfile is remained in which
it's expected libs are installed under `/usr/local/lib/python2.7`, so
it should also be considered to be updated later.

Signed-off-by: Yasufumi Ogawa <yasufum.o@gmail.com>
Change-Id: Iafbd1588674c95d6b6ec6b5429f2d34fb23081d0

lower-constraints.txt

@@ -59,7 +59,6 @@ PyYAML==3.13
 requests==2.18.0
 requestsexceptions==1.2.0
 simplejson==3.5.1
-six==1.10.0
 snowballstemmer==1.2.1
 stevedore==1.20.0
 testrepository==0.0.18
@@ -67,6 +66,5 @@ testscenarios==0.4
 testtools==2.2.0
 tosca-parser==1.6.1
 traceback2==1.4.0
-unittest2==1.1.0
 warlock==1.2.0
 wrapt==1.7.0

requirements.txt

@@ -6,7 +6,6 @@ Babel!=2.4.0,>=2.3.4 # BSD
 cliff!=2.9.0,>=2.8.0 # Apache-2.0
 PyYAML>=3.13 # MIT
 python-dateutil>=2.5.3 # BSD
-six>=1.10.0 # MIT
 tosca-parser>=1.6.1 # Apache-2.0
 keystoneauth1>=3.4.0 # Apache-2.0
 python-novaclient>=9.1.0 # Apache-2.0

translator/common/utils.py

@@ -18,9 +18,8 @@ import numbers
 import os
 import re
 import requests
-import six
-from six.moves.urllib.parse import urlparse
 import tempfile
+from urllib.parse import urlparse
 import yaml
 import zipfile
 
@@ -278,7 +277,7 @@ class UrlUtils(object):
 def str_to_num(value):
     """Convert a string representation of a number into a numeric type."""
     if isinstance(value, numbers.Number) \
-            or isinstance(value, six.integer_types) \
+            or isinstance(value, int) \
             or isinstance(value, float):
         return value
     try:

translator/conf/config.py

@@ -12,10 +12,9 @@
 # under the License.
 
 ''' Provide a global configuration for the TOSCA translator'''
+import configparser
 import os
 
-from six.moves import configparser
-
 from toscaparser.utils.gettextutils import _
 import translator.common.exception as exception
 

translator/hot/syntax/hot_resource.py

@@ -1,4 +1,3 @@
-#
 # Licensed under the Apache License, Version 2.0 (the "License"); you may
 # not use this file except in compliance with the License. You may obtain
 # a copy of the License at
@@ -12,11 +11,9 @@
 # under the License.
 
 from collections import OrderedDict
-import yaml
-
 import logging
 import os
-import six
+import yaml
 
 from toscaparser.elements.interfaces import InterfacesDef
 from toscaparser.functions import GetInput
@@ -402,10 +399,10 @@ class HotResource(object):
     def _get_lifecycle_inputs(self, operation):
         # check if this lifecycle operation has input values specified
         # extract and convert to HOT format
-        if isinstance(operation.value, six.string_types):
+        if isinstance(operation.value, str):
             # the operation has a static string
             return {}
-        else:
+
         # the operation is a dict {'implemenation': xxx, 'input': yyy}
         inputs = operation.value.get('inputs')
         deploy_inputs = {}
@@ -588,18 +585,17 @@ class HotResource(object):
 
     @staticmethod
     def get_base_type_str(node_type):
-        if isinstance(node_type, six.string_types):
+        if isinstance(node_type, str):
             return node_type
         if node_type.parent_type is not None:
             parent_type_str = None
-            if isinstance(node_type.parent_type, six.string_types):
+            if isinstance(node_type.parent_type, str):
                 parent_type_str = node_type.parent_type
             else:
                 parent_type_str = node_type.parent_type.type
 
             if parent_type_str and parent_type_str.endswith('.Root'):
                 return node_type.type
-            else:
             return HotResource.get_base_type_str(node_type.parent_type)
 
         return node_type.type

translator/hot/tosca_translator.py

@@ -1,4 +1,3 @@
-#
 # Licensed under the Apache License, Version 2.0 (the "License"); you may
 # not use this file except in compliance with the License. You may obtain
 # a copy of the License at
@@ -12,7 +11,7 @@
 # under the License.
 
 import logging
-import six
+
 from toscaparser.utils.gettextutils import _
 from translator.hot.syntax.hot_template import HotTemplate
 from translator.hot.translate_inputs import TranslateInputs
@@ -64,7 +63,7 @@ class TOSCATranslator(object):
         yaml_files = self.hot_template.output_to_yaml_files_dict(
             "output.yaml",
             self.node_translator.hot_template_version)
-        for name, content in six.iteritems(yaml_files):
+        for name, content in yaml_files.items():
             if name != "output.yaml":
                 with open(name, 'w+') as f:
                     f.write(content)

translator/hot/translate_node_templates.py

@@ -15,7 +15,6 @@ import copy
 import importlib
 import logging
 import os
-import six
 
 from collections import OrderedDict
 from toscaparser.functions import Concat
@@ -140,7 +139,7 @@ log = logging.getLogger('heat-translator')
 
 TOSCA_TO_HOT_TYPE = _generate_type_map()
 
-BASE_TYPES = six.string_types + six.integer_types + (dict, OrderedDict)
+BASE_TYPES = (str, int, dict, OrderedDict)
 
 BASE_POLICY_TYPES = [
     'tosca.policies.Scaling',
@@ -326,7 +325,7 @@ class TranslateNodeTemplates(object):
                     else:
                         target = details
                     if (target and relation and
-                            not isinstance(relation, six.string_types)):
+                            not isinstance(relation, str)):
                         interfaces = relation.get('interfaces')
                         connectsto_resources += \
                             self._create_connect_configs(node,

translator/shell.py

@@ -16,7 +16,6 @@ import codecs
 import logging
 import logging.config
 import os
-import six
 import sys
 import uuid
 import yaml
@@ -289,7 +288,7 @@ class TranslatorShell(object):
         if output_file:
             path, filename = os.path.split(output_file)
             yaml_files = translator.translate_to_yaml_files_dict(filename)
-            for name, content in six.iteritems(yaml_files):
+            for name, content in yaml_files.items():
                 with open(os.path.join(path, name), 'w+') as f:
                     f.write(content)
         else:

translator/tests/test_conf.py

@@ -36,7 +36,7 @@ def reload_config(func):
 class ConfTest(TestCase):
 
     @reload_config
-    @mock.patch('six.moves.configparser.ConfigParser')
+    @mock.patch('configparser.ConfigParser')
     def test_load_config(self, mock_config_parser):
         translatorConfig._translator_config.read = mock.MagicMock()
         translatorConfig._load_config('fake_file.conf')