OrderedDict support in python 2.6

OrderedDict support in python 2.6.
Flake8 format changes.
Add the json format for info option.

JIRA: PDC-1912

pdc_client/plugins/product_version.py

@@ -8,7 +8,11 @@
 from __future__ import print_function
 
 import json
-from collections import OrderedDict
+try:
+    from collections import OrderedDict
+except ImportError:
+    # Python 2.6 needs this back-port
+    from ordereddict import OrderedDict
 
 from pdc_client.plugin_helpers import (PDCClientPlugin,
                                        extract_arguments,
@@ -75,6 +79,9 @@ def product_version_create(self, args):
     def product_version_info(self, args, product_version_id=None):
         product_version_id = product_version_id or args.product_version_id
         product_version = self.client["product-versions"][product_version_id]._()
+        if args.json:
+            print(json.dumps(product_version))
+            return
 
         fmt = '{0:20} {1}'
         for key, value in self.prep_for_print(product_version).items():

pdc_client/runner.py

@@ -54,6 +54,7 @@ def autocomplete(*args):
     'contact.py',
     'image.py',
     'permission.py',
+    'product_version.py',
     'release.py',
     'repo.py',
     'rpm.py'

tests/product_version/tests.py

@@ -61,7 +61,7 @@ def test_info(self, api):
 
         # compare stdout with data/info.txt
         with self.expect_output('info.txt'):
-           self.runner.run([
+            self.runner.run([
                 'product-version',
                 'info',
                 'test-product-version-1',