pylint: Ignore usage of 'unicode' before assignment

New versions of pylint ignore Python 2 functions and types, evaluating
'unicode' as "undefined". ansible-freeipa will always define 'unicode'
when running under Python 3, and it is always defined under Python 2.

This patch fixes these false positives.

plugins/modules/ipagroup.py

@@ -663,7 +663,9 @@ def main():
 
                 check_parameters(ansible_module, state, action)
 
-            elif isinstance(group_name, (str, unicode)):
+            elif (
+                isinstance(group_name, (str, unicode))  # pylint: disable=E0606
+            ):
                 name = group_name
             else:
                 ansible_module.fail_json(msg="Group '%s' is not valid" %

plugins/modules/ipahost.py

@@ -988,7 +988,7 @@ def main():
                     sshpubkey = [str(normalize_sshpubkey(key)) for
                                  key in sshpubkey]
 
-            elif isinstance(host, (str, unicode)):
+            elif isinstance(host, (str, unicode)):  # pylint: disable=E0606
                 name = host
             else:
                 ansible_module.fail_json(msg="Host '%s' is not valid" %

plugins/modules/iparole.py

@@ -293,7 +293,7 @@ def result_get_value_lowercase(res_find, key, default=None):
     if existing is not None:
         if isinstance(existing, (list, tuple)):
             existing = [to_text(item).lower() for item in existing]
-        if isinstance(existing, (str, unicode)):
+        if isinstance(existing, (str, unicode)):  # pylint: disable=E0606
             existing = existing.lower()
     else:
         existing = default

plugins/modules/ipaservice.py

@@ -693,7 +693,7 @@ def main():
 
                 delete_continue = service.get("delete_continue")
 
-            elif isinstance(service, (str, unicode)):
+            elif isinstance(service, (str, unicode)):  # pylint: disable=E0606
                 name = service
             else:
                 ansible_module.fail_json(msg="Service '%s' is not valid" %

plugins/modules/ipauser.py

@@ -1382,7 +1382,7 @@ def main():
 
                 email = extend_emails(email, default_email_domain)
 
-            elif isinstance(user, (str, unicode)):
+            elif isinstance(user, (str, unicode)):  # pylint: disable=E0606
                 name = user
             else:
                 ansible_module.fail_json(msg="User '%s' is not valid" %