Fix Python code style for inventory_builder (#5362)

.gitlab-ci/lint.yml

@@ -42,10 +42,14 @@ syntax-check:
 tox-inventory-builder:
   stage: unit-tests
   extends: .job
+  before_script:
+    - ./tests/scripts/rebase.sh
+    - apt-get update && apt-get install -y python3-pip
+    - update-alternatives --install /usr/bin/python python /usr/bin/python3 10
+    - python -m pip install -r tests/requirements.txt
   script:
-    - pip install tox
+    - pip3 install tox
     - cd contrib/inventory_builder && tox
-  when: manual
   except: ['triggers', 'master']
 
 markdownlint:

contrib/inventory_builder/inventory.py

@@ -224,8 +224,8 @@ class KubesprayInventory(object):
                 end = int(ip_address(end_address))
             except Exception:
                 # Python 2.7
-                start = int(ip_address(unicode(start_address)))
-                end = int(ip_address(unicode(end_address)))
+                start = int(ip_address(str(start_address)))
+                end = int(ip_address(str(end_address)))
             return [ip_address(ip).exploded for ip in range(start, end + 1)]
 
         for host in hosts:

contrib/inventory_builder/tests/test_inventory.py

@@ -12,6 +12,7 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import inventory
 import mock
 import unittest
 
@@ -43,7 +44,7 @@ class TestInventory(unittest.TestCase):
 
     def test_get_ip_from_opts_invalid(self):
         optstring = "notanaddr=value something random!chars:D"
-        self.assertRaisesRegexp(ValueError, "IP parameter not found",
+        self.assertRaisesRegex(ValueError, "IP parameter not found",
                                self.inv.get_ip_from_opts, optstring)
 
     def test_ensure_required_groups(self):
@@ -63,7 +64,7 @@ class TestInventory(unittest.TestCase):
     def test_get_host_id_invalid(self):
         bad_hostnames = ['node', 'no99de', '01node', 'node.111111']
         for hostname in bad_hostnames:
-            self.assertRaisesRegexp(ValueError, "Host name must end in an",
+            self.assertRaisesRegex(ValueError, "Host name must end in an",
                                    self.inv.get_host_id, hostname)
 
     def test_build_hostnames_add_one(self):
@@ -192,7 +193,7 @@ class TestInventory(unittest.TestCase):
             ('node2', {'ansible_host': '10.90.0.3',
                        'ip': '10.90.0.3',
                        'access_ip': '10.90.0.3'})])
-        self.assertRaisesRegexp(ValueError, "Unable to find host",
+        self.assertRaisesRegex(ValueError, "Unable to find host",
                                self.inv.delete_host_by_ip, existing_hosts, ip)
 
     def test_purge_invalid_hosts(self):
@@ -309,7 +310,7 @@ class TestInventory(unittest.TestCase):
 
     def test_range2ips_incorrect_range(self):
         host_range = ['10.90.0.4-a.9b.c.e']
-        self.assertRaisesRegexp(Exception, "Range of ip_addresses isn't valid",
+        self.assertRaisesRegex(Exception, "Range of ip_addresses isn't valid",
                                self.inv.range2ips, host_range)
 
     def test_build_hostnames_different_ips_add_one(self):

contrib/inventory_builder/tox.ini

@@ -1,7 +1,7 @@
 [tox]
 minversion = 1.6
 skipsdist = True
-envlist = pep8, py27
+envlist = pep8, py33
 
 [testenv]
 whitelist_externals = py.test